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A Derby Winner’s Drug Test Won’t Change the Bets. Here’s Why.

Related Topics: Epsom Derby, Kentucky Derby, A Derby

So now that the Kentucky Derby winner Medina Spirit has failed a drug test, I can cash my bet on the second-place finisher, Mandaloun. And my buddy who bet Medina Spirit will have to return his winnings, right?

Well, no.

Betting rules at horse racing tracks, off-site wagering venues and internet sites are very clear in cases like this. Once a race has been declared official, a few minutes after it is over, the betting is final. Winners can collect their cash, and losers can tear up their tickets.

The reason for this is pretty simple.