T. M. Opera O
| T. M. Opera O | |
|---|---|
T. M. Opera O at age three | |
| Sire | Opera House |
| Grandsire | Sadler's Wells |
| Dam | Once Wed |
| Damsire | Blushing Groom |
| Sex | Stallion |
| Foaled | March 13, 1996 |
| Died | May 17, 2018 (aged 22) |
| Country | Japan |
| Colour | Chestnut |
| Breeder | Kineusu Bokojo |
| Owner | Masatsugu Takezono |
| Trainer | Ichizo Iwamoto |
| Jockey | Ryuji Wada |
| Record | 26: 14-6-3 |
| Earnings | 1,835,189,000 JPY |
| Major wins | |
| Satsuki Sho (1999) Tenno Sho (Spring) (2000, 2001) Takarazuka Kinen (2000) Kyoto Daishoten (2000, 2001) Tenno Sho (Autumn) (2000) Japan Cup (2000) Arima Kinen (2000) | |
| Awards | |
| JRA Award for Best Three-Year-Old Colt (1999) Japanese Horse of the Year (2000) JRA Award for Best Older Male Horse (2000) Timeform rating: 128 | |
| Honours | |
| Japan Racing Association Hall of Fame (2004) | |
| Last updated on March 7, 2026 | |
T. M. Opera O (Japanese: テイエムオペラオー, March 13, 1996 – May 17, 2018) was a champion Japanese thoroughbred racehorse, and the world's all-time leading money earner at the time of his retirement in 2001. In 1999, he was the champion three-year-old colt in Japan after winning the Satsuki Sho (Japanese 2000 Guineas). At age four, he was the Japanese Horse of the Year and champion older horse after an undefeated season that included wins in the Tenno Sho (both spring and autumn), the Japan Cup and the Arima Kinen. T. M. Opera O was inducted into the Japan Racing Association Hall of Fame in 2004.