Last Updated on 21/02/2026 by Andy Clark
Boylesports offer a percentage boost on top of your winnings on selected bet builders every week — 25% on the regular fixtures, rising to 50% on standout matches such as the Super Sunday games and local derbies in the Premier League.
With a maximum stake of £20 and a maximum boost payout of £1,000, it is one of the most generous and consistent bet builder offers available from any UK bookmaker for existing customers.
Back to: Boylesports Existing Customer Offers
How the Boylesports Bet Builder Boost Works
The Boylesports Bet Builder Boost is straightforward. On selected matches — typically the biggest Premier League, Champions League, and major international fixtures of the week — Boylesports offer a fixed percentage boost on the winnings from a qualifying bet builder. The standard boost is 25%, with selected standout matches upgraded to 50%.
The boost is applied to your winnings only, not to your total return. So if your £20 bet builder wins and returns £100 (£80 profit + £20 stake), a 25% boost adds £20 to your winnings, giving you a total return of £120. A 50% boost on the same bet would add £40, giving a total return of £140.
The mechanics are simple:
- Open Boylesports on desktop or mobile
- Navigate to the match with the Bet Builder Boost icon
- Build your bet builder with minimum odds of 3/1
- Apply the boost — it will appear automatically in the betslip for eligible markets
- Confirm and place your bet with a stake of up to £20
- If your bet builder wins, the boosted amount is added to your winnings once all selections have settled
The boost is not applied at the time of bet placement — it is credited once every leg of the bet builder has settled. This means you will see your standard winnings credited first, with the boost amount added shortly after in most cases.
25% Bet Builder Boost — Standard Weekly Offer
The 25% boost is Boylesports’ standard bet builder promotion, available every week on a rolling selection of fixtures. In practice, this means most major Premier League matches each gameweek will carry the 25% offer, alongside selected Champions League, Europa League, and international fixtures when they are in the calendar.
Key terms for the 25% Bet Builder Boost:
- Minimum bet builder odds: 3/1
- Maximum stake: £20
- Maximum boost payout: £1,000
- One boosted bet per qualifying event per customer
- Available to new and existing customers
- Online only (desktop and mobile)
- Free bets, cashed out bets, and void bets do not qualify
- Boost applied to winnings after all selections settle
The 3/1 minimum odds requirement is the main practical constraint. A three or four-leg bet builder built on realistic, well-researched selections will typically come in above 3/1 without needing to pad it with unlikely outcomes. A two-leg bet builder combining, say, over 1.5 goals and a player to have a shot on target would usually fall short of 3/1, so three or more considered legs is the working model.
The £20 maximum stake means the maximum cash boost at 25% is £500 on a bet that returns £2,000 profit — in practice, at odds of 3/1 to 10/1 where most qualifying bet builders will sit, the boost adds between £15 and £200 on a £20 stake.
50% Bet Builder Boost — Selected Standout Fixtures
On standout fixtures — historically the biggest Premier League derbies, high-profile Champions League knockouts, and marquee international matches — Boylesports upgrade the boost to 50%. This doubles the additional value on the same qualifying criteria.
On a £20 bet builder returning £120 total (£100 profit + £20 stake), a 50% boost adds £50 to your winnings, giving a total return of £170. The same maximum boost payout of £1,000 applies.
Boylesports typically announce 50% boost fixtures on their promotions page in the days before the match. These are not guaranteed to appear every week — they tend to coincide with the two or three genuinely appointment-to-watch matches in any given round of fixtures. The fixtures where a 50% boost has appeared in the 2025-26 season include:
- Selected Premier League fixtures (Manchester City, Arsenal, Liverpool home matches)
- Champions League round of 16 and quarter-final ties
- Selected international tournament group and knockout matches
The 50% boost carries the same terms as the standard offer — min odds 3/1, max stake £20, one per qualifying event, online only.
How to Find Which Matches Have the Boost
Boylesports mark eligible matches with a Bet Builder Boost icon on their football listings page. The quickest approach is to check the promotions page directly, where all active boosts for the day or weekend are listed in one place. Alternatively, browse to the Bet Builder section of the football page and look for the boost indicator next to the match.
The boost is available in the 48 hours before kick-off on most fixtures, though Boylesports sometimes activates it earlier on marquee matches. It closes at kick-off and is not available in-play.
Boylesports Bet Builder Boost vs Competitors
The Boylesports Bet Builder Boost is among the strongest of its kind in the UK market for a standing weekly offer. Here’s how it compares to similar promotions at other bookmakers:
| Bookmaker | Boost % | Max Stake | Availability |
|---|---|---|---|
| Boylesports | 25% / 50% | £20 | Selected matches weekly |
| bet365 | Varies (5-50%) | Varies | Selected matches |
| Betfred | 10% | £25 | Selected matches |
| William Hill | 10-50% | £25 | Selected matches |
| Paddy Power | 25-50% | £25 | Selected matches |
Two things distinguish the Boylesports offer. First, the consistency — 25% is available on a large number of fixtures each week rather than just one or two headline games. Second, the 50% tier appears on genuinely big fixtures without requiring a specific opt-in or token claim, which keeps the friction low for regular bet builder bettors.
Getting the Most from the Bet Builder Boost
Build at the right odds. The 3/1 minimum is a genuine threshold — if your bet builder drifts under 3/1 as you add selections, the boost will not apply. Build your bet builder with three or four well-reasoned legs and check the odds before adding the boost. Our bet builder tips include daily selections on the featured fixtures, many of which will be the same matches carrying the Boylesports boost.
Use the full £20 stake on high-confidence selections. The £1,000 maximum boost payout is effectively uncapped for most realistic bet builders at 3/1 to 15/1 odds. The binding constraint is the £20 max stake, so if you have a high-confidence selection, using the full stake maximises the boost value.
Combine with Sub Swap on player markets. The Boylesports Sub Swap offer means any player market in your bet builder continues with the substitute if your selected player is taken off. Building a bet builder on a featured fixture with Sub Swap active on your player legs and the Bet Builder Boost applied gives you two layers of protection and upside on the same bet.
Check for 50% upgrades on big match weeks. On Champions League knockout nights or blockbuster Premier League fixtures, it is worth checking the promotions page specifically rather than navigating directly to the match — Boylesports often apply the 50% boost to these games early in the week, and it can be easy to miss.
Bet Builder Boost Terms — Full Summary
| Term | Detail |
|---|---|
| Standard boost | 25% on winnings |
| Enhanced boost | 50% on selected standout fixtures |
| Minimum bet builder odds | 3/1 |
| Maximum stake | £20 |
| Maximum boost payout | £1,000 |
| Eligible customers | New and existing |
| Eligible channels | Online only (desktop and mobile) |
| Bets per qualifying event | One |
| Excluded bets | Free bets, void bets, cashed out bets |
| Boost timing | Credited after all selections settle |
18+. Online only. Min Odds of 3/1. Max stake £20. Available on one bet per selected event. Boost % can vary. Boost will be added once all selections have settled. Max boost payout £1,000. Offer does not apply to multiple bets. Free/void/cashed out bets won’t qualify. T&Cs apply.
Frequently Asked Questions
- Does the boost apply to each-way bet builders?
- What happens if one leg of my bet builder is void?
- Can I use a free bet to qualify for the boost?
- Is the boost available in-play?
- How many boosted bet builders can I place per week?
- What does the £1,000 maximum boost payout mean in practice?
See all Boylesports existing customer offers or check our daily bet builder tips for selections on today’s featured fixtures.