Topic
- In Japan, the era changed from Showa to Heisei.
- The Second Horse Racing Boom gained further momentum with the success of The Heisei Top Three (Oguri Cap, Super Creek, Inari One).
G1 races
| Races | Track | age / (Colt Filly Gelding) | 1st |  |
| Oka Sho | Hanshin T1600 |
3 / F | Shadai Kagura | ◆ |
| Satsuki Sho | Nakayama T2000 |
3 / CF | Doctor Spurt | ◆ |
| Tenno Sho (Spring) | Kyoto T3200 |
over 4 / CF | Inari One | ◆ |
| Yasuda Kinen | Tokyo T1600 |
over 4 / CFG | Bamboo Memory | ◆ |
| Yushun Himba (Japanese Oaks) | Tokyo T2400 |
3 / F | Light Color | ◆ |
| Tokyo Yushun (Japanese Derby) | Tokyo T2400 |
3 / CF | Winners Circle | ◆ |
| Takarazuka Kinen | Hanshin T2200 |
over 3 / CFG | Inari One | ◆ |
| Tenno Sho (Autumn) | Tokyo T2000 |
over 3 / CF | Super Creek | ◆ |
| Kikuka Sho | Kyoto T3000 |
3 / CF | Bamboo Begin | ◆ |
| Queen Elizabeth II Cup | Kyoto T2400 |
3 / F | Sand Peeress | ◆ |
| Mile Championship | Kyoto T1600 |
over 3 / CFG | Oguri Cap | ◆ |
| Japan Cup | Tokyo T2400 |
over 3 / CFG | Horlicks (AUS) | ◆ |
| Asahi Hai Sansai Stakes | Nakayama T1600 |
2 / CF | Ines Fujin | ◆ |
| Hanshin Sansai Stakes | Hanshin T1600 |
2 / CF | Kogane Taifu | ◆ |
| Arima Kinen | Nakayama T2500 |
over 3 / CFG | Inari One | ◆ |
JRA Award
| Horse of the Year | Inari One |
| Best Two-Year-Old Colt | Ines Fujin |
| Best Two-Year-Old Filly | Sakura Saezuri |
| Best Three-Year-Old Colt | Winners Circle |
| Best Three-Year-Old Filly | Shadai Kagura |
| Best Older Male Horse | Inari One |
| Best Older Filly or Mare | Louisiana Pit |
| Best Sprinter or Miler | Bamboo Memory |
| Best Dirt Horse | Dyna Letter |
| Best Steeplechase Horse | Mejiro Maskette |
| Best Anglo-Arabian | Akihiro Homare |
| Leading sire in Japan | Northern Taste |
| Best Horse By Home-bred Sire | Bamboo Begin |
| Special Award | Oguri Cap |
| Leading sire in Japan | Mill George (all Japan) Northern Taste (only JRA races) |
| ← 1988 | All | 1990 → |