Gulfstream Park on Saturday will have a mandatory payout on its Rainbow 6 jackpot, and the pool will start with a carryover of $951,991.
Gulfstream is estimating that about $7.5 million will be bet on the Rainbow 6, which will be on races nine to fourteen on its Florida Derby day card.
The sequence is scheduled to start at 3:37 p.m. on the Rainbow 6, which is a 20 cents per combination-only bet. First post on Saturday is 11:30 a.m.
The jackpot is made up of the entire coming-in carryover plus 80 percent of the day's bets on the Rainbow 6.
The attraction on Saturday is that Gulfstream will pay out the jackpot--no matter the number of tickets with all six winners in the Rainbow 6.
On non-mandatory days, it pays out the jackpot only if there is just one ticket with all six winners.
On non-mandatory days with multiple winning tickets, Gulfstream takes out 20 percent of the day's Rainbow 6 bet. It then divides 56 percent among tickets with six winners and adds 24 percent to the carryover.
On Friday the coming-in carryover was $871,173. Bettors added $332,922 to the pool.
Each ticket with all six winners paid $246.28 on a 20 cent bet.
HorseRacingFLA's review of Equibase charts shows there were 766 such tickets.
Program numbers of the winning horses were 2-1-2-1-2-1. Odds on the winners were 9-2 or lower.