Alabama Stakes (2003) Jockey Club Gold Cup (2004) Coolmore Lexington Stakes (2006) Colonial Turf Cup (2006) Secretariat Stakes (2006) Jamaica Breeders' Cup Handicap (2006) Hollywood Derby (2006) Remsen Stakes (2006) Holy Bull Stakes (2007) Wood Memorial Stakes (2007, 2008) Red Smith Handicap (2007) Mrs. Revere Stakes (2007) Queen Elizabeth II Challenge Cup Stakes (2007) Futurity Stakes (2007) U.S. Racing Hall of Fame Stakes (2007) Kent Breeders' Cup Stakes (2007) Jamaica Handicap (2007) Tampa Bay Derby (2008) Suburban Handicap (2009) Cigar Mile Handicap (2010)
Barclay Tagg (born December 30, 1937 in Lancaster, Pennsylvania) is an American thoroughbred horse trainer. A 1961 graduate of Pennsylvania State University with a degree in Animal Husbandry, he is best known for conditioning Kentucky Derby, Preakness, and Jockey Club Gold Cup winner Funny Cide. Horses in Tagg's stable have included Showing Up and Nobiz Like Shobiz. Barclay trains horses year round, spending spring in New York and winter in Florida.
Formerly a steeplechase jockey, Tagg won his first race in 1972 at Old Liberty Park. He has been a journeyman trainer for many years, and with Funny Cide became the first trainer to win the Kentucky Derby in his first attempt since Cam Gambolati with Spend a Buck in 1985.