Description
Place a £10+ pre-match ‘Bet Builder’ on Detroit Lions @ Baltimore Ravens to get a £5 free ‘Bet Builder’ for Seattle Seahawks @ Arizona Cardinals.
Key terms
Opt-in
Yes.Offer availability
Bet must be placed between 12:00 on Monday, 22nd September 2025 and 01:15 on Tuesday, 23rd September 2025.Event
Detroit Lions @ Baltimore Ravens pre-match ‘Bet Builder’.Minimum stake
£10+.Minimum odds
1.50 (1/2) per selection.Minimum selections
4+.Qualifying bet
Only your first ‘Bet Builder’ on the event after opting in qualifies.Reward
£5 free ‘Bet Builder’ credited upon settlement of the qualifying bet.Reward validity
Use on Seattle Seahawks @ Arizona Cardinals at 01:15 on Friday, 26th September 2025.Restrictions
One reward per customer; in-store bets and Power Up Multis excluded.
Read full terms .
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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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.