The Gulfstream Park Rainbow 6 will have a carryover of $123,819 on Sunday - the closing day of its meet run at Calder in Miami Gardens.
Meet sponsor Gulfstream Park will have mandatory payouts on the Rainbow 6, the Late Pick 5 and on the tenth and last race's Super Hi-5.
First post is 12:30 p.m. for a ten-race card. The Rainbow 6, a 20-cent per combination only bet, is on races five through ten with the sequence scheduled to start at 2:30 p.m.
Gulfstream on Dec. 1 will open its 2018-2019 championship meet at its track in Hallandale Beach.
A Florida law prohibits a pari-mutuel from extending a carryover into a next race meet.
HorseracingFLA's review of Rainbow 6 data indicates that $500,000 or more could be added to the pool on Sunday, as bettors chase the Rainbow 6 jackpot.
The jackpot consists of the full carryover plus 80 percent of the day's new Rainbow 6 bet.
On Sunday, Gulfstream will payout the jackpot no matter the number of tickets with all six winning horses.
On most days, it pays out the jackpot only if there is just one ticket with all six winners.
If there are multiple winning tickets on such days, Gulfstream takes out 20 percent, divides 56 percent among tickets with the most winners and adds 24 percent to the carryover.