Key Biscayne is a 5 year old mare and has raced from 2019 to 2022. She was sired by Brethren out of the Lemon Drop Kid mare Boa Twelve. She was trained by Juan Alvarado and has raced for Arindel, and was bred in Florida, United States by Arindel. Key Biscayne has raced at Belmont Park, Delaware Park, Fair Grounds, Gulfstream Park, Keeneland, Saratoga with wins at Belmont Park, Delaware Park, Gulfstream Park. Her stakes wins include wins in the 2022 Robert G. Dick Memorial (G3), and the 2021 Monroe Stakes (LS).