Description
Place a pre-match ‘Bet Builder’ on Man City v Chelsea to boost your winnings by 50%.
Eligible events
Key terms
Opt-in
Toggle the ‘Profit Boost’ on your betslip.Offer availability
Available from 09:00 to 17:30 on Sunday, 4th January 2026; one boost per customer.Event
Man City v Chelsea – Sunday, 4th January 2026.Market
Pre-match football ‘Bet Builder’.Eligible customers
Selected BetMGM account holders.Qualifying bet
Only your first ‘Bet Builder’ placed during the promo window qualifies.Minimum selections
3.Maximum stake
Varies (set by BetMGM).Reward
50% extra on winnings, credited as cash upon settlement.Restrictions
Extra winnings capped at £5,000; boost non-withdrawable.
Read full terms .
Tips for this offer
Based on a £10 stake, aim for a profit of £1.50 on this BetMGM offer.
General advice and example for profit boosts
Place your profit boost bets at high odds to maximise your profits. Use the ‘Qualifying Bet’ setting on the Matched Betting Calculator to calculate your lay stakes. You’ll need to enter your effective odds as your ‘Back odds’. You can calculate your effective odds by factoring in your profit boost.
See my Profit Boosts 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.