A racing punter won £823,000 from a £19 bet on May Day, according to Coral.
The customer, who has asked to remain anonymous is in his 40s and from Leicester.
He placed a five-fold acca at Punchestown for the biggest return in Coral's history.
He told Coral: “I’ve been placing these accumulator bets pretty much every day for twenty years, and winning this bet is the realisation of a lifetime dream. Over the years I’ve come close landing a big return a couple of times but kept hitting the woodwork, and now I’ve done it I feel remarkably calm.
"I don’t know if I’ll even carry on betting after this as I feel I’ve achieved my goal.
“I put a lot of effort into picking my horses. I like to follow stables in form, I’ll study the breeding of the horses, and look at their recent performances.
THE WINNING ACCA
- 10/1 Das Mooser (3.40 Punchestown)
- 9/2 Woodland Opera (4.20 Punchestown)
- 7/1 Definite Ruby (4.55 Punchestown)
- 10/1 Bacardys (6.05 Punchestown)
- 33/1 Canardier (7.45 Punchestown)
(5 x £3 Fourfold Accumulators)
(1 x £4 Fivefold Accumulator)
"I then check which bookie has the best odds for my bet, and unfortunately for Coral, this time it was you guys.”
“My Dad was a bookie and got me into it when I was young. My first winning bet was on Desert Orchid when he won the 1986 King George. I’ve followed the sport and been placing these bets ever since.
"I never place singles, only accumulators and nearly always with three or more horses in them. I don’t know what I’m going to do with the money, as it’s only just sinking in, but I have a few ideas and it is going to change my life.”
Simon Clare, of Coral, said: “This is the most incredible big-win story that we have ever encountered and a just-reward for our customer for 20 years of perseverance placing these ‘small-stake big-win’ bets day-in day-out.
“Canardier, the horse that completed his incredible big win was a 33/1 outsider when he backed it, though it returned 8/1, and the customer told me that he didn’t think the form of the other horses in the race was that good, and that as Canardier was well-bred and with a good trainer it was worth a punt.
"Even in the context of landing this amazing bet that one horse was a truly inspirational selection.
“There must be something in the water in Leicester, as the City’s football team landed the biggest shock in football betting history last year winning the Premier League at odds of 5000/1, and now this inspired customer has landed the biggest ever horse-racing win with Coral of over £800k for just £19."