Best Betting Sites With Bet Builder

Updated October 2026

Licensed

Available in US

Fast payouts

18+ Only

A bet builder lets one betting slip hold several selections from the same match, settle them together and pay out once. The mechanic is straightforward; the marketing around it is less so, and the small print has a habit of deciding whether a winning bet actually feels like a winning bet. This page is written for a reader in Great Britain weighing ten licensed bookmakers against the question of who handles that combination bet honestly. The order of what is presented is consequence first: what follows from using a bet builder, what it costs, when the offer stops being an offer, and only then who runs the better version of it.

Data current as of 27 October 2026, with each bookmaker’s licence, welcome offer headline and product claims cross-referenced against the Gambling Commission’s public register and each operator’s own published terms.

Selection fundamentals: what a bet builder is, and what it settles on

A bet builder is one bet that ties several selections from a single event together, so every leg has to win for the bet to win, and the odds of the legs multiply into one combined price. Sky Bet calls its version BuildABet; bet365 calls its Bet Builder+; Paddy Power, Betfair and most of the featured brands use the plain phrase “bet builder”. Same name, same mechanic, same quirk in the small print: the selections come from one event — one football match, one tennis match, one horse race — and they settle once that event concludes, with the exceptions each operator publishes for abandoned games, void runners and the like.

The mechanic comes with four rules that decide whether a particular builder is worth using at all. First, a single bet builder can hold up to ten selections from one event. A betslip can carry several builders from the same event, with no more than twenty selections in total across them; pushing past either ceiling is the moment the slip stops accepting legs. Second, contradictory selections cannot be priced: a bet on a team to win 2-0 cannot sit on the same slip as Over 2.5 goals, because the second implies at least three goals scored and the first implies exactly two. Third, not every market from an event can be added to a builder — only the markets the operator flags as eligible, surfaced through the dedicated builder screen rather than the standard event view. Fourth, if one leg is voided (a player does not start, a retirement mid-match, a non-runner), the rest of the bet runs on the remaining legs; a four-leg builder with one void settles on three legs at the odds of those three.

The last of those rules is the one casual punters miss. A bet builder is not an accumulator of unrelated matches — it is a same-event combo, and the house edge sits on every leg. The bookmaker does not price one bet builder as a single thing: it prices each selection, multiplies the prices, then embeds a margin at the multiplication step. That means a builder with four short-priced legs (all odds-on, all close to even money) can carry a worse effective margin than a builder with two well-priced legs, because every multiplication adds the house edge back in. A bettor who likes the convenience of a builder should keep it short.

A bet builder is also not the same as a request-a-bet feature, where the bettor names a bespoke market and the bookmaker prices it on the fly. The two overlap on the surface, and some brands blur them; the difference is that a builder is built from a menu of pre-priced legs, while a request-a-bet can be a one-off custom price. This page covers the builder as the menu-driven feature, because that is the version every featured operator ships as standard.

Selection landsca: ten licensed bookmakers compared

The table below lists the ten bookmakers reviewed on this page. Each row shows the Gambling Commission licence number (the account number on the public register) and the operating company the register names against that licence, then a short note on what the operator’s own terms state about its bet builder.

Two things the table makes plain. Every brand in the comparison holds a current Gambling Commission licence for remote general betting on real events — none of them runs offshore, none relies on a Maltese or Curaçao paper. The table also shows that not every brand makes the same fuss about its bet builder: bet365 and 10bet lead with it in their own marketing; Betboro, Fitzwilliam Sports and Lottoland mention the feature as one item in a longer list. That spread is the page’s subject — which brand’s bet builder does what, and what the feature is worth when the headline is taken off.

Selection statute: what may be combined, and what the licence allows

There is no statutory list of permitted bets or markets in Great Britain. The Gambling Act 2005 grants the Gambling Commission the power to licence categories of gambling activity, and each operator decides which markets to offer under its own licence conditions and codes of practice. That has three consequences for the bettor using a bet builder.

First, the categories that exist on the register are fixed, and a bet builder is a fixed-odds bet — it pays a multiple of the stake at a fixed price, settled on the result of a real event. That puts it inside remote general betting standard (real events), the same category the ten brands above all hold. A bookmaker offering a bet builder on virtual events holds a separate remote general betting standard (virtual events) licence, and a bet builder crossing the real/virtual line would fall outside what the licence covers.

Second, the licence is at the point of consumption: since the Gambling (Licensing and Advertising) Act 2014, an operator whose remote facilities are used in Great Britain needs a Commission licence wherever it is based. A Curaçao, Maltese or Gibraltar licence is not a substitute, and a bookmaker serving GB customers without one is committing an offence under section 33 of the 2005 Act — a point made on the page for the reader who sees a brand advertised on a social feed and wonders whether the GB licence on the homepage is optional.

Third, the operator sets the markets. There is no statutory rule that says a bookmaker must offer a bet builder at all, must include a specific market in it, or must settle it on the same terms as a single bet. That is what makes the small print worth reading: the categories and the licence are the Commission’s job, the markets and the rules are the operator’s.

Selection safeguard: gambling harm and the limits on a bet builder

GAMSTOP is the national multi-operator online self-exclusion scheme and a mandatory licence condition for online operators. Excluding through GAMSTOP blocks the punter from every GB-licensed online bookmaker and casino at once, for a minimum of six months. The licensed operator sits inside that scheme — that is the licence condition, not a marketing claim.

The deposit limit regime has changed shape in 2025 and 2026. From 31 October 2025, operators must offer a gross deposit limit on a fixed time frame as a default tool, and a second phase has been postponed to 30 September 2026. The financial vulnerability check (LCCP condition 3.4.4, in force since 30 August 2024) runs when deposits minus withdrawals exceed £150 in a rolling 30 days, since 28 February 2025; it is a public-record check, not an income check and not a credit reference check. The financial risk assessments widely reported as “affordability checks” are announced, staged, with no start date — not in force as a binding rule.

A bet builder sits inside the same player-protection frame as a single bet. The £150 vulnerability threshold counts bets of any type towards it. A punter who runs ten small builders a day reaches the same trigger as a punter who runs ten small singles — the trigger is on the deposit side, not on the bet count. The promotion rules in force since 19 January 2026 also count: a builder used to clear a bonus falls inside the 10x wagering cap on bonuses, and a free-bet builder cannot be combined with casino play to clear a mixed offer, because mixed-product promotions are banned.

For readers who need to talk: GamCare (the National Gambling Helpline), GambleAware, the NHS gambling clinics and Gamblers Anonymous are the routes named on the Commission’s safer-gambling pages. A bet builder is a betting product, not a clinical one — but the money that flows through it counts the same way for the limits.

Selection incentive: bonuses, free bets and what a bet builder takes to clear

Bonuses and free bets are not part of the bet builder itself; what matters is how a builder sits inside the offer’s clearance terms. A £10 free-bet token used on a builder pays out at the combined odds of the legs, with the stake not returned — that is the standard free-bet rule. The odds the punter picks determine whether the token pays back more than its face value, and the punter who uses a free-bet token on a builder at combined odds shorter than 3/1 is paying the bookmaker the difference.

The headline offer on ten brands is best read as one figure: the size of the free bet, the qualifying bet, the minimum odds and the expiry. Betway’s UK and Ireland welcome is £40 in free bet tokens (4 x £10) on settlement of a first bet of at least £10 at minimum odds of 2.0 (1/1), 7-day expiry, debit card deposits only. Spreadex’s new-customer offer is £60 in free bets for a £10 fixed-odds bet, usable across fixed odds and spread betting, with the qualifying bet placed within 28 days of opening the account. BetTom’s sports welcome is 50% back as a free bet up to £50, with a matching 50% back up to £50 as free slot funds on the casino side, full terms apply. bet365 runs Bet Builder+ with Super Boosts and Winnings Boosts as a separate product layer rather than a headline bonus. 10bet, Betboro, Octobet, William Hill, Fitzwilliam Sports and Lottoland run offers that vary in shape and terms; what they have in common is the free-bet token mechanic rather than a no-strings credit.

What is on the page is the offer headline and the qualifying terms; what is not on the page is a promo code or voucher, which is not how these offers are described in editorial terms, and not how a GB-licensed operator prints them either. The same rule applies to the in-product boosts that surface inside the bet builder itself: Super Boosts and Winnings Boosts on bet365, daily price boosts on Betboro’s selected singles, the price-boost prompts on Midnite, the Best Odds Guaranteed on William Hill and Octobet for UK and Irish racing. They are a price advantage, not a separate bet — and a builder leg that runs through a price boost pays out at the boosted price.

The promotion rules in force since 19 January 2026 change the offer ceiling. Wagering requirements on bonuses are capped at 10x — a £10 bonus at 50x wagering, the old ceiling on some offers, is now banned. Mixed-product promotions are banned: an offer that requires the punter to bet on football to unlock free spins, or to bet on slots to unlock a sports free bet, is out. Whether the 10x cap applies to a free bet with no wagering condition, and whether there is any cap on the money value of a bonus, are not established — write the rule as it stands, not as the reader might want it to stand.

Selection handset: the bet builder in the mobile app and on the browser

A bet builder is a touchscreen product more than a desktop one. The mechanic of tapping a market, watching it land in a builder tab, adding another leg and seeing the combined odds update in real time is built around a small screen and a finger. Every brand in the comparison ships a mobile app on Apple and Google, and the builder sits inside the match view on each. The differences are in how the builder is surfaced.

bet365’s Bet Builder+ is a separate tab on the match screen, with the combined price updating as each leg is added, and the in-play builder on the same screen so the punter can add to a builder live. Betway’s builder sits inside the football and tennis match view, with eligible markets flagged at the top. 10bet’s builder, alongside Cash Out and Live Streaming, is part of the sportsbook feature list. Fitzwilliam Sports builds the slip on Oddschecker’s average price for each leg, which means the builder’s price tracks the wider market. Lottoland runs sports alongside casino and lottery betting in one app, with the builder inside the sports section.

The browser experience is the same product, less ergonomic. The bets that benefit most from a mobile builder are the in-play ones — the ones the punter wants to add to quickly as a goal lands, a player comes off, a corner count shifts. The desktop version of the same builder is one or two taps behind. None of this is a reason to skip the browser; it is a reason to keep the in-play builder on the app and the pre-match builder on whichever screen is at hand.

The technical standards behind the apps sit in the Commission’s Remote Technical Standards (RTS), the same set that governs deposit limits, self-exclusion and the financial vulnerability check. An app on the GB App Store with a 17+ rating carries the age-gating the standards require; an app without the rating, or one published against a different store, is a different conversation.

Selection momentum: in-play betting and cash out on a bet builder

An in-play bet builder is the same builder built from a match in progress. The odds update as the match updates, and the combined price adjusts leg by leg. bet365 ships an in-play Bet Builder+ on the same screen as the pre-match version; Spreadex runs the feature on its fixed-odds sportsbook and on its spread-betting side, with the spread version priced on the index rather than the match event.

Cash out on a bet builder is the operator’s offer to buy the bet back at a price it sets, before the event settles. Cash out is not a market price; it is the bookmaker’s own valuation, and it carries the same house edge as the original bet. A builder leg that drifts to a shorter price bumps the cash-out value up; a leg that drifts to longer odds bumps it down. The cash-out feature is offered at the bookmaker’s discretion and can be suspended at any time, including when a goal is scored and the trader needs a moment to reprice the slip.

The combination of an in-play builder and cash out is where the feature earns its keep on a small-stakes account. A punter who builds a five-leg builder pre-match and watches the first leg land can cash out the remaining four at the new combined price, taking a partial profit and removing the rest of the exposure. The mechanic is the same on the featured brands; the implementation differs in how aggressively the operator prices the cash out and how often it suspends it. Betboro’s cash-out feature covers football, racing and tennis; bet365 and Betway sit on cash-out across the same sports and more.

A live-streamed match changes the in-play builder for the obvious reason: the punter can watch the match and build the slip at the same time. 10bet lists Live Streaming alongside the bet builder and Cash Out as a feature of the sportsbook. The streams are subject to geo-restrictions inside GB (rights holders often limit streams to UK and Ireland), and the feature is offered at the bookmaker’s discretion.

Selection analytic: tips, predictions and what a bet builder does to a staking plan

A bet builder tip is a forecast on a particular combination of selections from one event. The tip’s quality depends on the price of each leg and the punter’s edge on each leg; the builder’s structure — combining the legs — adds the house edge at the multiplication step rather than adding a fixed margin. A punter who has an edge on every leg still loses some of that edge to the multiplication, and a punter who has an edge on one leg and is guessing on the others is paying the bookmaker for the privilege.

Predictions on individual legs are a different product from a builder tip. A prediction on a football match’s full-time result (home win, draw, away win) is a single selection at a price the bookmaker sets. A prediction on a builder is a forecast of how four, six or ten selections resolve together, and the punter has to be right about all of them. The skill that produces an edge on a single bet does not automatically produce an edge on a builder; the punter has to be right about the same-event correlation of the legs. A team winning 2-0 is correlated with Over 2.5 goals being false; it is anti-correlated with both teams to score being false in a clean-sheet win. The correlations are the substance of a builder, and a punter who treats a builder as a chain of independent bets is treating it as a smaller version of an accumulator, which is not what it is.

Bankroll discipline on a builder follows the same rule as a single: stake what the punter can afford to lose, do not chase, and read the small print. The small print on a builder is shorter than on a free bet or a bonus, which is one of the feature’s quieter advantages. The punter who reads the small print once on the bookmaker’s “Build a Bet” or “Bet Builder+” page has read the small print on every builder on that bookmaker; the offer terms, in contrast, change offer to offer and have to be re-read each time.

Selection builder: the featured bookmakers in turn

Each review below covers one brand, in the order the comparison sets. The verdict at the end is the page’s judgement of the brand on its own terms — what it does well, what it costs, who it suits. None of these reviews is a recommendation; the choice is the punter’s, on the punter’s own staking plan and the punter’s own match list.

10bet — the all-in-one sportsbook

10bet runs a remote general betting standard (real events) licence under Blue Star Planet Limited (Gambling Commission account 43173). The sportsbook covers football, tennis and horse racing, and the published feature list names Cash Out, Bet Builder and Live Streaming as standard. The bet builder sits inside the standard match view, with eligible markets flagged at the top of the slip.

The brand suits a punter who wants one app for football, racing and the in-play markets, with cash out and live streaming on the same match view. The builder is part of the package rather than the headline; 10bet does not lead its marketing with the builder, and the punter who picks the brand for the builder’s depth is paying for a feature the brand does not advertise. The punter who picks the brand for the package gets a builder that does the job without fuss.

Verdict: a balanced, all-in-one choice for the punter who wants a sportsbook that covers everything from football to horse racing without the marketing noise.

BetTom — the matched free-bet package

BetTom operates under a Gambling Commission remote licence (account 64959) held by Bet Tom Limited. The sports welcome offer is a 50% matched free bet of up to £50, with a matching 50% back as free slot funds on the casino side, full terms apply. The matched free bet is the brand’s centrepiece; the bet builder sits inside the sportsbook menu as a standard feature.

A matched free bet is a heavier offer than a token-drop, because the punter has to stake the deposit to unlock the credit. The £50 ceiling and the 50% match mean a £100 deposit returns £50 free-bet credit, plus £50 in casino credit, with the casino credit subject to its own wagering terms. A punter who only wants the sports side is paying for the casino credit in wagering terms, even if the punter does not use the casino credit. A punter who wants both reads the small print on each side and decides whether the combined offer beats a single-product brand.

Verdict: a brand built around the offer rather than the builder. The punter here is taking the matched free bet first and the builder second; that order is fine if the matched free bet is what the punter wants.

bet365 — the feature-led builder

bet365 holds a Gambling Commission remote licence (account 55148) via Hillside (UK Sports) ENC. The bet builder ships as Bet Builder+, with markets from one event combined into a single bet, available pre-match and in-play, alongside Super Boosts, Winnings Boosts on Bet Builders and selected singles, and daily Bet Boosts. The feature is named, marketed and integrated across the app and the desktop product.

bet365 is the brand to compare other builders against, because the builder’s depth (Super Boosts and Winnings Boosts inside the builder itself) is unusual in the comparison set. A punter who uses a Bet Builder+ leg that is also a Super Boost gets the boosted price on the leg and the combined price on the slip, which is the closest thing in the comparison to a price advantage on a builder. The Super Boosts are short-lived, the eligibility is the bookmaker’s call, and the boost does not apply to every selection.

Verdict: the depth leader on the builder feature, appealing to the punter who treats the builder as a serious strategic instrument.

Spreadex — fixed-odds and spread betting under one licence

Spreadex holds a Gambling Commission remote licence (account 8835) under Spreadex Limited, while the financial spread-betting side is regulated by the Financial Conduct Authority. The brand’s own homepage makes the point: spread betting losses can exceed the deposit, which is a feature of the FCA-regulated product and not a quirk of the GB sportsbook licence.

A punter who is interested in Spreadex for the fixed-odds side and the bet builder is using a different product from the spread bet — and the two products have different risk profiles. The new-customer offer (£60 in free bets for a £10 fixed-odds bet, usable across fixed odds and spread betting, qualifying bet within 28 days of opening) is across both products, which is convenient for a punter who uses both, less so for a punter who only wants the sportsbook.

Verdict: a dual-product brand that offers both fixed-odds and spread betting, though the fixed-odds specialist may find faster interfaces elsewhere.

Betway — the football-led sportsbook

Betway holds a Gambling Commission remote licence (account 39372) under Betway Limited. The welcome offer for new UK and Ireland customers is £40 in free bet tokens (4 x £10) credited on settlement of a first bet of at least £10 at minimum odds of 2.0 (1/1), with a 7-day expiry and debit card deposits only. The bet builder is inside the football and tennis match views.

The £10 minimum odds at 2.0 (1/1) on the qualifying bet is the point worth checking. A punter who qualifies at minimum odds on a builder with combined odds shorter than 2.0 does not qualify — the qualifying bet has to be at 2.0 or longer. The 7-day expiry on the free bet tokens is shorter than the 28 days on Spreadex’s offer, and a punter who lets the tokens expire has wasted the qualifying bet.

Verdict: a clean football-led sportsbook with a token welcome that rewards speed; the punter who plans the qualifying bet around the calendar gets the tokens, the punter who leaves it to the week before the expiry does not.

Betboro — the cash-out-led in-play book

Betboro operates under a Gambling Commission remote licence (account 44181) via Webmedia Development N.V. The in-play product covers football, racing and tennis with cash out on each, plus boosted odds on selected singles from £10 stakes, and responsible gambling tools (deposit limits, reality checks, self-exclusion) named in the brand’s own published terms.

A cash-out-led in-play bookmaker is one where the in-play builder earns its keep on the slip that gets re-priced mid-match. A punter who plans to cash out part of a builder mid-match gets a bookmaker that treats cash out as a feature rather than a setting. The boosted-odds singles are a separate product from the builder; the punter who tries to build a slip out of boosted singles will not find them eligible.

Verdict: a focused in-play book for the punter who plans the builder around cash out; the pre-match specialist will find the product secondary to the live tools.

Octobet — the racing-led sportsbook

Octobet is licensed by the Gambling Commission (account 62545) through Octopus Game Limited. Best Odds Guaranteed on UK and Irish horse racing is the brand’s named racing feature, up to £150 per customer per race.

BOG is a single-condition promise: if the punter takes a price on a horse and the starting price (SP) is larger, the bookmaker pays the larger. The condition holds on UK and Irish racing, up to £150 per customer per race, on the standard race types — the cap and the exclusions are in the small print. The bet builder on racing is the version that combines markets from one race (finish position, winning distance, going preference) into one slip; not every racing market is eligible, and the racing builder is thinner than the football builder on most books.

Verdict: a racing-led brand for the punter whose staking plan is racing-heavy and who values the BOG promise; the football builder on the brand is a standard product rather than the reason to pick it.

William Hill — the long-standing bookmaker with BOG

William Hill is licensed by the Gambling Commission (account 39225) under WHG (International) Limited. Best Odds Guaranteed on UK and Irish horse racing from 8 AM on the day of the race, on both single and multiple bets, is the named racing promise; it does not apply to ante-post, tote or pari-mutuel bets. The bet builder is part of the standard football and racing offering.

The 8 AM start on the BOG promise is the detail that decides whether the punter benefits. A punter who takes a price on a horse the evening before the race and the SP is larger at the off gets paid the SP. The 8 AM cutoff is the time the BOG promise kicks in; prices taken before 8 AM are subject to the SP comparison but not the BOG promise in the same form. Ante-post bets (taken before the final declarations) are excluded, as are tote and pari-mutuel bets — those are pool-betting products on a separate licence.

Verdict: a long-standing brand with a strong BOG promise, suitable for the racing punter; the builder is a standard football-and-racing extra.

Fitzwilliam Sports — the price-tracking builder

Fitzwilliam Sports runs a remote general betting standard (real events) licence under SBKI Limited (Gambling Commission account 48760). The published pricing model bases each selection’s price on Oddschecker’s average price for that selection, with mobile apps on Apple and Google. The bet builder follows the same pricing model: each leg’s price is the Oddschecker average.

A price-tracking builder is one for whom the punter can compare each leg against the market average without leaving the slip. A punter who is price-shopping across bookmakers gets the comparison built in; a punter who only bets on one book has less use for the feature. The pricing model means the builder’s combined price tracks the wider market, which is not the same as being the best price on every leg.

Verdict: a price-tracking choice for the punter who prioritises market-average odds on every leg; it serves the comparison shopper well.

Lottoland — the multi-product GB-licensed brand

Lottoland runs a remote general betting standard (real events) licence under EU Lotto Limited (Gambling Commission account 38991). The published product set covers casino, lottery betting, sports betting and scratchcards under one Gambling Commission licence, with the sportsbook’s bet builder inside the sports section. The app combines the four products under one login.

A multi-product brand has one advantage (one account, one deposit, one safer-gambling toolset across products) and one cost (the sportsbook is one product among four, and the brand’s feature depth on sports is not the headline). A punter who only wants sports has simpler choices; a punter who wants sports alongside lottery and casino in one place has a single app for it.

Verdict: a multi-product GB-licensed brand for the punter who wants the sportsbook alongside lottery, lottery betting and scratchcards; the punter who only wants the sportsbook is paying for the other three products.

Selection margin: what the bookmaker keeps of every unit bet on a market

The margin is the share of every unit staked that the bookmaker keeps, on average across all outcomes of one market. It is the same number seen from the other side as the “payout share” or “return to player”. A 5% margin means the bookmaker keeps 5p of every £1 staked across the market, on average; a 10% margin means it keeps 10p.

For a simple two-way market priced at 1.90 / 1.90 (decimal), the payout share is 1 ÷ (1/1.90 + 1/1.90) = 1 ÷ (0.5263 + 0.5263) = 1 ÷ 1.0526 = 0.9500, and the margin is 1 − 0.9500 = 0.0500, or 5.00%. The same market at 1.80 / 1.80 has a payout share of 1 ÷ (1/1.80 + 1/1.80) = 1 ÷ 1.1111 = 0.9000 and a margin of 10.00%. The shorter the price on a two-way market, the higher the margin; the longer the price, the lower the margin on that two-way market alone.

A bet builder’s margin is not the margin of one market; it is the multiplication of the margins of the legs, plus the margin the bookmaker applies at the builder step. A four-leg builder where each leg has a 5% margin does not have a 5% margin — it has a margin closer to 19% on the combined slip, because each multiplication adds the house edge back in. The exact figure depends on the price of each leg; a builder with four legs at odds of 1.50 / 1.50 / 1.50 / 1.50 has a combined price of 5.0625, with each leg at a margin of around 6.7% on a three-way market, and the combined margin closer to 24%. The punter who uses the builder as a chain of short-priced legs is paying a higher effective margin than the punter who uses it as a chain of longer-priced legs.

What this means in practice: a bet builder is a margin product, not a value product, unless the punter has a real edge on every leg. A punter who has an edge on a single selection is better off betting the single than building it into a builder; a punter who only uses the builder for the convenience is paying the bookmaker for the combination.

The margin arithmetic is a band: the two-way market at 1.90 / 1.90 carries a margin of around 5%, the 1.80 / 1.80 version around 10%, and a four-leg builder with short-priced legs lands materially higher than either. A punter who reads the band as “5% to 10% on a single two-way market” is reading the basic case; the builder case is the one the punter pays for.

Selection snapshot: which bookmaker, for which punter

A punter whose staking plan is built around the bet builder rather than the single is paying for the feature, and the choice of bookmaker is the choice of which feature to pay for. The depth leader on the builder is bet365’s Bet Builder+ with its in-play version and the Super Boosts and Winnings Boosts on the builder itself. The racing-led brand for the punter whose plan is racing-heavy is Octobet or William Hill, both with Best Odds Guaranteed on UK and Irish racing. The dual-product brand for the punter who wants fixed-odds and spread under one roof is Spreadex. The price-tracking brand for the comparison shopper is Fitzwilliam Sports. The matched-free-bet brand for the punter who values the offer is BetTom. The football-led brand with a token welcome is Betway. The cash-out-led in-play brand is Betboro. The multi-product GB-licensed brand for the punter who wants sports alongside lottery and casino is Lottoland. The all-in-one sportsbook for the punter who wants Cash Out, Live Streaming and a builder in one place is 10bet.

The punter who reads the list as “the best bet builder is bet365” is missing the point. The punter who reads the list as “bet365’s builder is the deepest, William Hill’s racing is the most generous, Spreadex’s dual-product licence is the most useful for the spread punter” is reading it as the page intended: ten books, ten different profiles, ten different punters. The match is the punter’s job, not the page’s.

Frequently asked questions

What is a bet builder?

A bet builder is a single bet that ties several selections from one event together, so every leg has to win for the bet to win and the odds of the legs multiply into one combined price. Sky Bet calls its version BuildABet; bet365 calls its Bet Builder+; the mechanic is the same across brands. The rules are short: a single builder holds up to ten selections from one event, a slip can carry several builders with no more than twenty selections in total, contradictory selections cannot be priced, and a void leg drops out of the slip without killing the bet.

What is bet builder?

The phrase is a feature name, not a different product. “Bet builder” is what the bookmaker calls the same-event multi-bet that other brands call BuildABet or Bet Builder+. The product is the same: one bet, several selections, one combined price, settled on the result of one event. The name is a marketing choice, not a different bet. A punter who sees “bet builder”, “BuildABet” and “Bet Builder+” on three different brands is seeing the same product under three names; the small print on each is the place to look for the differences.

What is a horse racing bet builder?

A horse racing bet builder is the same mechanic on a racing event. The builder combines markets from one race — finish position, winning distance, going preference — into one slip, with the legs drawn from the markets the operator flags as eligible. Not every racing market is eligible, and the racing builder is thinner than the football builder on most books; Best Odds Guaranteed (BOG) is a separate promise on UK and Irish racing on William Hill and Octobet, with a cap on the BOG payout and exclusions in the small print (ante-post, tote, pari-mutuel).

How can it be checked that a bookmaker holds a Gambling Commission licence?

The Commission’s public register is the whole test. Search by the operator’s business name, trading name or domain, or by the account number (a five-digit number like 43173 for 10bet or 55148 for bet365); the register shows the licence categories, the licence holder’s legal name and the licence status. A licence is current until it is shown as surrendered, lapsed or revoked; the register is updated daily. A bookmaker on the register for remote general betting standard (real events) is licensed to offer fixed-odds betting online in Great Britain; a bookmaker not on the register is not licensed and is operating outside the regime the Act requires.

How is the return on a bet worked out from the stake and the odds?

Return = stake × odds, for decimal odds. A £10 stake at odds of 6.00 returns £60, of which £50 is net profit (stake × (odds − 1)). A combination bet’s odds are the multiplication of the legs: four legs at 2.00 / 2.00 / 2.00 / 2.00 produce a combined price of 16.00, and a £10 stake returns £160 (profit £150). Each-way bets place two bets of equal stake, so the stake doubles and the place terms (a fraction of the win odds) are set by the operator and the race type.

What is the bookmaker’s margin and how can it be seen in the odds?

The margin is the share of every unit staked that the bookmaker keeps, on average across all outcomes of one market. For a two-way market at 1.90 / 1.90 (decimal), the payout share is 1 ÷ (1/1.90 + 1/1.90) = 0.9500 and the margin is 5.00%; at 1.80 / 1.80 the payout share is 0.9000 and the margin is 10.00%. A three-way 1X2 football market priced at 2.10 / 3.40 / 3.40 has a payout share of 1 ÷ (1/2.10 + 1/3.40 + 1/3.40) ≈ 0.9231 and a margin of around 7.69%. The shorter the price on a market, the higher the margin; a bet builder’s margin is the multiplication of the legs’ margins, which is why a builder with several short-priced legs carries a higher effective margin than the same legs as singles.

Content created by the «Boxing betting» team