The unidentified person won after a surprising 40/1 outsider won at Doncaster.
The horse racing fan correctly predicted the winners on four races in Dubai and Doncaster on a Lucky 15 each-way bet.
A Lucky 15 bet involves placing a total of 15 bets across a choice of 4 races, while you can have success with one winner, this lucky individual won on all four.
The odds of this were worked out as 13,705/1.
The perhaps luckiest part of the whole story was a 40/1 outsider, meaning they were not expected to win, won.
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