After one of the most controversial endings in sports history, the bettors who had Maximum Security winning the 145th Kentucky Derby lost big time. However, there's a slight light at the end of the disqualification tunnel., Churchill Downs' online wagering service, tweeted they will refund up to $10 to everyone who bet on Maximum Security to win.

In total, almost $9 million was bet on Maximum Security, including over $1 million for the colt to Place (2nd) and over $1 million to Show (3rd). The track said wagering this year went up by 10 percent. to a record $165.5 million.

Over half a million was wagered on Country House to win.

Derby attendance was down four percent from last year.

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