With no real feature, the races at Gulfstream Park Thursday are lacking in star quality. However, with a $342,508 carryover in the Rainbow 6, there are plenty of reasons to focus on the eight-race card, which begins at 12:50 p.m. Eastern. One way to look at playing the jackpot wager is to try to get to the last race, where Unlonely is the most likely winner on the card. He looks formidable in the $16,000 maiden claimer for 3-year-olds and up going five furlongs on turf. Not only does Unlonely easily have the strongest Beyer Speed Figures in the field, the Florida-bred 3-year-old gelding is trained by Saffie Joseph Jr., who is winning races at a 27 percent clip at the current meet. His 13 wins more than doubles that of Todd Pletcher and Carlos David, who are tied for second in the standings with six wins. :: Bet horse racing on DRF Bets. Double Your First Deposit Up to $250. Join Now. A son of Uncaptured, Unlonely is coming off back-to-back runner-up finishes at the same level and distance and will be tough to get past if he breaks alertly from post 2 with Emisael Jaramillo riding. If there is going to be an upset it will come from Nketiah, who showed good speed after breaking slowly from the rail when he debuted in a maiden-special race on the main track at Tampa Bay on Jan. 15. He has worked well leading up to his return and makes his first start for trainer Gilberto Zerpa, who the past five years has a 31 percent strike rate and $3.20 ROI with new shooters. How Nketiah will handle running on turf remains to be seen, but the past five years Zerpa is 5 for 37 (14 percent) with horses running on grass the first time and 0 for 4 if they were coming back between 61-180 days. The sequence begins in the third race, where contention runs deep in a $12,500 conditioned claimer for fillies and mares going 1 1/16 miles on turf. Jimmyssmokedcarrot and Pearlescent will vie for favoritism in the seven-horse field. Star Swept and All About Kathern are strong possibilities. Nationalist will be a single on many tickets in the fourth race. However, the 4-year-old filly is stepping into an open $6,250 claiming race where the water is a lot deeper than it was in her easy win over non-winners of three in her last start for the same price. If Nationalist is not up to the challenge, any of the other five horses in the field could win. The fact that the Carlos David-trained first-time starter Shea on a Mission is the 3-1 morning-line favorite in the fifth race tells us to go deep in $50,000 maiden claimer for fillies and mares. The five-furlong race on turf drew seven horses. One Eyed Jack, Ingreido, and Ninetydaysofwinter are logical in race 6, a $6,250 claimer for 3-year-olds or 4-year-olds and up nonwinners of three. If Miss Ghislaine can settle for leading rider Edgard Zayas, she could be a handful in the seventh race. The 4-year-old daughter of Denomination is dropping into a $12,500 nonwinners of two for fillies and mares after going unplaced for the same condition for $35,000 on April 22. The 1 1/16-mile race drew seven horses for turf. Gran Reserva will start if the race gets moved to the main track.