The 20-cent Rainbow 6 carryover jackpot rose to $72,444 for Friday’s 2:15 twilight program Thursday when the popular multi-race wager went unsolved for the fourth consecutive racing day.

The 20-cent Rainbow 6 also went unsolved Thursday, when multiple tickets with all six winners were each worth $8,004.08.

The Rainbow 6 carryover jackpot is routinely paid out only when there is a single unique ticket sold with all six winners. On days when there is no unique ticket sold, 70 percent of that day’s pool goes back to those bettors holding tickets with the most winners while 30 percent is carried over to the jackpot pool.

Friday’s Rainbow 6 sequence will span Races 4-9.

There will also be a Super Hi 5 carryover in the first race Friday of $33,528.