The Rainbow 6 carryover is $49,992. It is on races five through ten, with the sequence scheduled to start at 2:33 p.m.
Conditions are listed as Fast and Firm. The Weather Channel forecast is for a 15 percent chance of rain during racing hours.
On Wednesday there were 203 tickets with the winners of all six Rainbow 6 races. Each was paid $203.58 on the 20-cent only bet.
Gulfstream makes a Rainbow 6 jackpot payout only on days when there is just one ticket with all six winners and on pre-announced mandatory days when it divides the jackpot among multiple winning tickets.
The jackpot consists of 80 percent of the day's Rainbow 6 bet plus the entire incoming carryover.
On other days, such as Wednesday, Gulfstream takes out 20 of the new Rainbow 6 bet, It then divides 56 percent among tickets with the most winners (usually six) and adds 24 percent to the carryover.