| 馬名 | 性別 | 父 | 母 | 生年 |
|---|---|---|---|---|
| Leave Seattle | 牡 | Seattle Slew | Leave Me Alone | 1988 |
| アウトラスティング | 牝 | Seattle Slew | Outstandingly | 1988 |
| Sycamore Slew | 騸 | Seattle Slew | Melody Tree | 1988 |
| Capre | 牝 | Seattle Slew | Quarrel | 1988 |
| Classic Slew | 牝 | Seattle Slew | No Class | 1988 |
| Two Way Slew | 牡 | Seattle Slew | Prowess | 1988 |
| スルーオブハーツ | 牝 | Seattle Slew | Full Card | 1988 |
| Castle Rock | 牡 | Seattle Slew | Bold Escape | 1988 |
| Riverton Heights | 牡 | Seattle Slew | Rose Red | 1988 |
| Summer in Seattle | 牝 | Seattle Slew | Summer Legend | 1988 |
| Oro Nuevo | 牡 | Seattle Slew | Municipal Bond | 1988 |
| ハイエストエスティメイト | 牝 | Seattle Slew | Highest Regard | 1988 |
| Hubble | 牡 | Seattle Slew | Far Flying | 1988 |
| Metfield | 牡 | Seattle Slew | Inca Queen | 1988 |
| Seattle Princess | 牝 | Seattle Slew | Bold But Baffled | 1988 |
| Compelling Sound | 牡 | Seattle Slew | Cheyenne Birdsong | 1988 |
| Barb's Lass | 牝 | Seattle Slew | Barbs Compact | 1988 |
| Inner Peace | 牝 | Seattle Slew | Kathleen's Girl | 1988 |
| General Meeting | 牡 | Seattle Slew | Alydar's Promise | 1988 |
| シアトルシンフォニー | 牝 | Seattle Slew | Corsage | 1988 |