Description
Opt in and place an NFL ‘Bet Builder’ to claim a free bet for another NFL ‘Bet Builder’.
Key terms
Opt in
Click ‘Opt in’ on the promo page before betting.Offer availability
08:00 on Saturday, 20th September 2025 and 04:30 on Monday, 22nd September 2025.Event and market
Any NFL 'Bet Builder'.Qualifying bet
Place an NFL 'Bet Builder'; stake amount shown in your personal offer.Minimum odds
2.00 (Evens) per 'Bet Builder'.Reward
One free bet to use on NFL 'Bet Builder' (value shown in your offer); credited upon placement.Reward validity
Use by 04:30 on Friday, 26th September 2025.Free bet winnings
Stake not returned.Restrictions
Online only (not in-store); Price Boost 'Bet Builder' bets don’t count; one free bet per customer; invitation required.
Read full terms .
Tips for this offer
Based on a 'Bet £5, Get £5' version of this offer, aim for a profit of £2.50 on this William Hill offer.
General advice and example for ‘Bet X, Get Y’ offers
Place your qualifying bets at low odds, ensuring you meet any minimum odds requirement. Use the ‘Qualifying Bet’ setting on the Matched Betting Calculator to calculate your lay stakes.
Once received, you can convert any free bets or bonuses into cash. Use the ‘Free Bet’ setting on the Matched Betting Calculator to calculate your lay stakes. It’s best to place free bets at high odds to maximise your profits.
See my ‘Bet X, Get Y‘ guide for a complete walkthrough of this offer type.
How to lay a Bet Builder
If you’re looking to lay a football Bet Builder, you’re in luck. All you need to do is add the right combination of selections, and you’ll be able to lay your Bet Builder in one bet at the betting exchange.
Bet Builders on other sports tend not to be as straightforward, and you may struggle to lay your bet. In that instance, and depending on the offer, you may want to treat it as advantage play.
See my Bet Builders guide for a walkthrough of your options.
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With detailed walkthroughs for all the best offers as they’re released, you’ll be bagging recurring profits in no time.
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Matt Kirman – Matched Betting Blogger
Since 2014, I’ve blogged over £100,000 worth of profit, and made it my mission to make matched betting accessible to everyone.