Thirtyfirststreet is a 15 year old horse that was born in 2008 and has raced from 2010 to 2014. He was sired by Good Journey out of the Sky Classic mare Avian. He was trained by Peter Eurton and has raced for Sterling Stables, and was bred in California, United States by Doug O'Neill, Mark Gorman. Thirtyfirststreet has raced at Colonial Downs, Del Mar, Fair Grounds Race Course, Golden Gate Fields, Hollywood Park, Lone Star Park, Santa Anita Park, Turfway Park, Zia Park with wins at Hollywood Park, Lone Star Park, Santa Anita Park. His stakes wins include wins in the 2011 Lone Star Derby (LS), and the 2010 Cali Breeders' Champ (RS).