Description
Place a £10+ pre-match ‘Bet Builder’ on Brentford v Chelsea to get a £5 free ‘Bet Builder’ for Brighton v Arsenal.
Eligible events
Key terms
Opt-in
Press the Opt-In button on the promo carousel before betting.Offer availability
Wednesday, 16th September 2026 until 20:00 on Friday, 18th September 2026.Event & market
'Build-A-Bet' on Brentford v Chelsea → free 'Build-A-Bet' for Brighton v Arsenal.Minimum stake
£10+.Minimum odds
5.00 (4/1) per 'Build-A-Bet'.Qualifying bet
First online 'Build-A-Bet' on Brentford v Chelsea after opt-in; minimum 2 selections.Reward
£5 free 'Build-A-Bet' credited upon placement; to use on Brighton v Arsenal with minimum 2 selections at 5.00 (4/1).Reward expiry
15:00 on Saturday, 19th September 2026.Stake returned
Free bet stake not returned with winnings.Restrictions
One per customer.
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.