Description
Place a £10+ pre-match ‘Bet Builder’ on Leeds v Brentford to get a £5 free ‘Bet Builder’ for Arsenal v Man City.
Eligible events
Key terms
Opt in
Press the Opt In button on the promo carousel before betting.Offer availability
Friday, 20th March 2026 until 20:00 on Saturday, 21st March 2026.Event & market
First 'Bet Builder' on Leeds v Brentford unlocks a free 'Bet Builder' for Arsenal v Man City.Required stake
£10+.Minimum odds & selections
Each 'Bet Builder' must have at least 2 selections and overall odds of 5.00 (4/1).Reward
£5 free 'Bet Builder' credited upon placement of the qualifying bet.Free bet use
Expires 16:30 on Sunday, 22nd March 2026; stake not returned with winnings.Restrictions
Online only; only the first bet after opt in qualifies.
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.