Football · Bet Builder Boost · William Hill
Bet Builder Winnings Boost (William Hill)
Boost your returns on Bet Builders with 3+ selections at 3/1 (4.0) or bigger on selected matches. Stake up to £20/€20 from cash and get a 25%–50% winnings boost if your Bet Builder wins.
Promo period: from 00:01 (UK time) on 28 July 2025 to 23:59 (UK time) on 24 May 2026. Pre-match singles only, selected matches, 3+ legs at odds of 3/1 or bigger. Max stake for the boost: £20/€20. Boosts are one-use per match, non-withdrawable and cannot be combined with other boosts or Free Bets. T&Cs apply. 18+.
Quick summary
At a glance, what the Bet Builder Winnings Boost gives you.
| Aspect | Details |
|---|---|
| Bookmaker | William Hill |
| Offer type | Winnings boost on Bet Builders |
| Sport | Football (selected matches) |
| Markets covered | Pre-match Bet Builders on eligible games |
| Bet structure | Single Bet Builder with 3+ legs at 3/1 (4.0) or bigger |
| Stake limit | Max stake eligible for boost: £20/€20 from your main balance |
| Boost size | +25% to +50% to your winnings (size set by William Hill per match) |
| Who can take part | Selected UK & Ireland customers, online/app only |
| Channels |
williamhill.com & William Hill iOS/Android apps Not available in shops |
What is the Bet Builder Winnings Boost?
The Bet Builder Winnings Boost is a price enhancement that lets you increase the odds of a 3+ leg Bet Builder at 3/1 (4.0) or bigger on selected football matches. When you toggle the boost on, William Hill applies a
25%–50% boost (set per match) to your potential winnings on a stake of up to £20/€20 from your real-money balance.If your Bet Builder wins, the boost is added on top of your regular return. If it loses, your stake is settled as normal – the boost itself has no cash value and cannot be withdrawn.
Key idea: build a pre-match Bet Builder with 3+ selections
at 3/1+ on a featured game, toggle the boost, stake up to £20,
and if it wins you pocket extra winnings.
How it works (step by step)
1. Find an eligible match
- Look for matches advertised with Bet Builder Winnings Boost on the homepage, promos, email, push or inbox messages.
- Boosts are made available no later than 00:01 on the day of the match and stay open until kick-off.
2. Build your Bet Builder
- Open the Bet Builder tab for the selected match.
- Add at least 3 selections to create a Bet Builder.
- Ensure the combined odds are at least 3/1 (4.0).
- The bet must be a pre-match single (no multiples or in-play Bet Builders).
3. Apply the Winnings Boost
-
In the bet slip, either:
- Toggle the “Boost” switch, or
- Select the boost from the “Rewards” section.
- Stake up to £20/€20 from your main balance.
- The full boost must be used in a single stake – any unused portion is lost.
- You can only use one Winnings Boost per match.
4. Settle & get paid if you win
- If your Bet Builder wins, your return is calculated at the boosted odds, with extra winnings added automatically.
- If your bet loses, you simply lose your stake as normal – the boost doesn’t give any refund or insurance.
- If you Cash Out, the Cash Out value is based on the original odds, not the boosted odds.
Qualifying vs non-qualifying bets
Qualifying bets
- Pre-match single Bet Builder on a selected match.
- At least 3 legs.
- Combined odds of 3/1 (4.0) or bigger.
- Stake up to £20/€20 from cash balance.
- Placed online via williamhill.com or the William Hill iOS/Android app.
- Customer is a selected UK or Ireland user and not excluded from promos.
Do not qualify
- In-play Bet Builders or bets on non-eligible matches.
- Bet Builders with fewer than 3 legs, or odds below 3/1.
- Stakes placed with Free Bets, or mixed cash + Free Bet stakes.
- Bets combined with other boosts/promos such as Epic Boosts or Price Boosts.
- Bets placed in shops or via other channels.
- Customers previously excluded from William Hill promotions.
Who is this promotion best for?
Best suited to
- Bettors who enjoy same-game football Bet Builders.
- Users comfortable building 3+ leg combos at higher odds (3/1+).
- Players who stake £10–£20 per Bet Builder and want extra upside when they land a winner.
UX tips
- Always double-check that the Boost toggle is ON before confirming your bet.
- Keep stakes on boosted bets within your normal bankroll limits – treat the boost as a nice extra, not a reason to chase.
- Avoid Cash Out if you mainly want the full boosted payout (Cash Out uses original odds).
Bet Builder
Winnings Boost
Football Specials
William Hill
Fair play & responsible betting
- William Hill may cancel promos, void bets or remove winnings if it detects unfair play such as minimal-risk wagering, collusion, multiple accounts or abuse of technical loopholes.
- If your account has payment issues or you are flagged/excluded for safer-gambling reasons, William Hill can withhold boosts and promo access.
- You can withdraw your real-money balance at any time, subject to legal and regulatory requirements.
- Always set limits, avoid chasing losses and consider the boost only as an extra edge, not guaranteed profit.