However, the UK online aggregator noted that the results are skewed by the different rules each operator has in terms of payout limits, with the bigger operators offering higher payouts as a rule of thumb.

The data chart shows that bet365 and William Hill have the highest limits for football betting, with both willing to pay out a maximum £2m ($2.2m) in winnings, while the rest of the pool – including Ladbrokes, Betfair, Betfred and Coral – have a flat £1m payout rate.

The world’s biggest sport aside, when looking at the five other sports investigated – horseracing, golf, tennis, rugby and tennis – the payouts change more drastically.

For horseracing, every operator had a blanket £1m limit, while golf saw bet365 offer the highest limit at £500,000 – with Betfair the lowest, at £100,000.

British Gambler found that bet365 & Ladbrokes offer a limit of £500,000 on tennis, with William Hill & Coral at £250,000, Paddy Power & Betfair offering £200,000 and Betfred significantly down in last, with a £100,000 limit.

Meanwhile, rugby had bet365 & Ladbrokes willing to pay out at £500,000, William Hill & Paddy Power at £250,000 and Betfair, Betfred and Coral all offering £100,000.

Lastly, cricket threw up the biggest surprise, with bet365, William Hill & Paddy Power all offering £250,000 limits; Betfair, Betfred & Coral at £100,000; however, the data showed that Ladbrokes was the most generous, and is willing to pay out at £500,000.