| 馬名 | 性別 | 父 | 母 | 生年 |
|---|---|---|---|---|
| Reasonable Answer | 牝 | Key to the Mint | What's the Reason | 1978 |
| Why | 牝 | Stage Door Johnny | What's the Reason | 1979 |
| Realistic View | 牡 | In Reality | What's the Reason | 1981 |
| Whatever For | 牡 | Caro | What's the Reason | 1982 |
| Unanswered | 牡 | Tom Rolfe | What's the Reason | 1983 |
| Ask Emile | 牡 | Irish Castle | What's the Reason | 1984 |
| アスクザリーズン | 牝 | Naskra | What's the Reason | 1985 |
| Doubting Tom | 牡 | Tom Rolfe | What's the Reason | 1986 |
| Thought Through | 牝 | Tom Rolfe | What's the Reason | 1987 |
| Cozzene's Queen | 牝 | Cozzene | What's the Reason | 1988 |
| Dinero Grande | 騸 | Greinton | What's the Reason | 1990 |