Gulfstream Park: Rainbow 6 Jackpot Pool Guaranteed At $450,000 Friday by Press Release|09.18.2022|5:54pm Gulfstream Park in Hallandale Beach, Fla. The 20-cent Rainbow 6 gross jackpot pool will be guaranteed at $450,000 Friday at Gulfstream Park. First-race post time is set for 12:25 p.m. (ET). The popular multi-race wager has gone unsolved for the 16 racing days following an Aug. 13 mandatory payout. The Rainbow 6 jackpot is paid out when there is a single unique ticket sold with all six winners. On days when there is no unique ticket, 70% of that day's pool goes back to those bettors holding tickets with the most winners, while 30% is carried over to the jackpot pool.