Gulfstream Park: Rainbow 6 Jackpot Pool Guaranteed At $100,000 Sunday by Press Release|07.02.2022|9:39pm The Rainbow 6 gross jackpot pool will be guaranteed at $100,000 Sunday at Gulfstream Park, where the $100,000 Bob Umphrey Sprint will headline a 10-race program to wrap up Summit of Speed Weekend. The popular multi-race wager has gone unsolved for the two racing days following Thursday's 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. The Rainbow 6 sequence will span Races 4-10, including the Bob Umphrey Sprint in Race 9. Ken Ramsey and the Estate of Sarah Ramsey's Chasing Artie returns to ungraded stakes company in the Umphrey, a 5 ½-furlong dash on Tapeta for 3-year-olds and up. The Saffie Joseph Jr.-trained son of We Miss Artie, who finished off the board in the Jaipur (G1) at Belmont Park last time out, is a multiple stakes winner who captured a Gulfstream optional claiming on turf in his 2022 debut and first start for Joseph April 22. Amador Sanchez-trained Dubai Key will seek his third straight victory on Tapeta in as many U.S. starts in the Umphrey. The Argentina-bred 5-year-old is a group-stakes winner in South America. Sunday's first-race post time is set for 12:30 p.m. (ET). There will not be a live racing program during Gulfstream Park's Freedom Fest celebration Monday.