Tosho Boy

Tosho Boy
SireTesco Boy
GrandsirePrincely Gift
DamSocial Butterfly
DamsireYour Host
SexStallion
Foaled(1973-04-15)15 April 1973
Died18 September 1992(1992-09-18) (aged 19)
CountryJapan
ColourBay
BreederFujimasa Farm
OwnerTosho Sangyo Co., Ltd.
TrainerTakayoshi Yasuda
Record15: 10-3-1
Earnings280,774,800 yen
Major wins
Satsuki Shō (1976)
Arima Kinen (1976)
Kyoto Shimbun Hai (1976)
Kobe Shimbun Hai (1976)
Takarazuka Kinen (1977)
Takamatsunomiya Hai (1977)
Awards
Japanese Champion Three-Year-Old Colt (1976)
Japanese Horse of the Year (1976)
Honours
JRA Hall of Fame (inducted 1984)
Last updated on September 22, 2025

Tosho Boy (Japanese: トウショウボーイ; 15 April 1973 – 18 September 1992) was a Japanese thoroughbred racehorse and stallion. Tosho Boy was successful as a racehorse, winning 10 of his 15 starts, including some of Japan's most significant horse races, such as the Satsuki Shō, Arima Kinen, and Takarazuka Kinen. Tosho Boy was part of a rivalry called "TTG" between himself, Ten Point, and Green Grass. Tosho Boy was voted both Japanese Horse of the Year and best three-year-old colt in 1976 for his racing successes. After retiring from racing, Tosho Boy was also a significant sire, producing numerous major stakes winners, including Japanese Triple Crown winner Mr. C. B.. With his success as both a racer and a stallion, Tosho Boy was elected to the JRA Hall of Fame in 1984.