Tampa Bay Downs' first race post is at 12:25 p.m. to start a ten-race card.
The Super High-5 carryover is $7,877 in that race.
Gulfstream Park has an 11-race card with first post of 12:35 p.m.
A main attraction is a Rainbow 6 carryover of $333,587. It will be on races six to eleven.
That carryover has been growing because Thursday was the tenth straight race day without the jackpot payout (full carryover plus 80 percent of the day's Rainbow 6 bet) requirement of just one ticket with the winners of all six Rainbow 6 races.
It will have a Super Hi-5 carryover of $8,416 on the second race, which has eight entrants and likely will have that many starters.
Gulfstream will not have a Super Hi-5 on the first race because the scratch of Morgans Harbour left it with just six starters.
Gulfstream and Tampa Bay both offer the Super Hi-5 on all races with seven or more starters.
At both tracks, it is a $1 minimum bet that requires picking the first five finishers in correct order with no consolation payoffs. If there are no winning tickets, the entire pool rolls over to the next race with seven or more starters. The takeout is 18 percent.
If the bet is not hit in the first race offered on an overnight carryover day such as today, the pools could grow by $50,000 or more in succeeding races