The Rainbow 6 carryover, now 19 days old, was $502,508 coming into Friday. Bettors added $155,400, a large amount for a weekday, to the Rainbow 6 pool.
The race was a $25,000 maiden claimer at 4 1/2 furlongs on dirt, for 2-year-olds.
Yale Deal, a gelded son of Factum, made his first start for trainer Kathleen O'Connell and owner Stonehenge LLC.
With Edgard Zayas riding, the Florida-bred Yale Deal, took the early lead and won in 53.41 on the dirt track listed as fast.
Rosas for Jimmy (8) finished second and Gator Fifty Two (6) came in third in the eight-horse field. Organic Jenny (1), the 2-1 favorite, finished fourth.
Yale Deal's winning time was 1.50 seconds slower than the 51.91 that Passionate Hachi ran in winning Friday's second race at 4 1/2 furlongs.
That race also was a $25,000 maiden claimer for 2-year-olds. Leonel Reyes rode the colt Passionate Hachi, a Florida-bred son of Gone Astrray.
Antonio Sano trains Passionate Hachi for The 3 Maria's Racing Stable and Passion Stables.
The Gulfstream 4 1/2 furlong track record of 50.99 seconds was set by the filly Amapola, then a 2-year-old, on May 25, 2016.