The fifth race is coming up at Gulfstream, with scheduled post at 3:14 p.m. to start the Sunday Rainbow 6.
It will follow a Saturday on which Gulfstream had a mandatory payoff on its Rainbow 6 jackpot.
A new Rainbow 6 pool will start today, and Gulfstream is guaranteeing that it will be at least $100,000 if there is just one ticket with all six winning horses.
On Saturday, a victory by 48-1 shot Green Gal in the 12th and final race knocked more than 15,000 tickets out of the Rainbow 6.
Prior to the 12th race, the Gulfstream tote board posted a note that there were 15,388 live tickets in the Rainbow 6.
Winners of the first five Rainbow 6 races came in at 7-2 or lower.
Green Gal's win produced a Rainbow 6 return of $17,081 on the 20 cents per combination-only bet.
Gulfstream did not announce the number off winning tickets.
HorseRacingFLA's review of Equibase charts showed there were 21 winning tickets.
Program numbers of the six winning hirses were 11-2-2-8-5-9.
The Rainbow 6 carryover coming in was $570,895. Bettors added $3,578,504 to the pool.
Gulfstream paid out a jackpot of the entire carryover plus 80 percent of the day's Rainbow 6 bet (20 percent takeout.