Trainer Andrew Nunes gave himself the perfect birthday gift with a treble, inclusive of winning two of the three feature races on the Thursday day-night John B. Simpson and Barbados Thoroughbred Breeders’ Association Raceday with Renaisance Frolic and Undisputed at the Garrison Savannah. Also landing a treble before a good crowd on the Independence Day programme was jockey Rickey Walcott, the rider of Undisputed. Ironically, it was that performance that …