From CNN…

"A Dream Come True
It's become one of the fabled wins in horse racing history -- and the elusive dream that lingers in the back of every punter's mind.
It started with a horse called Isn't That Lucky and ended with one called A Dream Come True, for one lucky punter from Yorkshire in Britain.
In 2008, the unnamed man placed just 75 cents on eight horses winning in an accumulator bet, said the BBC.
Despite the 2,000,000-1 odds, every horse won, granting the gambler a whopping $1.5 million windfall.
He became the first person in Britain to win £1 million ($1.5 million) in a betting shop"

My story not nearly as good. My best day at the track was four years ago. I hate betting small it's just no fun for me so I would routinely bet $20-50 exacta's. I can't remember the horses names but I hit one for a payday of around $1200. I just don't enjoy it unless there is a chance of a big payout. I never bet favorites unless it's in an exacta with a longer shot. So I don't win often but when I do it's a decent payday.