| 馬名 | 父 | 母 | 生年 |
|---|---|---|---|
| Gay Jinx | Ruthless | Faultina | 1952 |
| サールス | Ruthless | Sal | 1952 |
| Passive | Ruthless | Zenith | 1953 |
| Hyjest | Ruthless | Idle Jest | 1953 |
| Chutney | Ruthless | Piccalilli | 1954 |
| Verve | Ruthless | False Step | 1954 |
| Micky Hill | Ruthless | Sal | 1955 |
| Messalina | Ruthless | Midpicca | 1955 |
| Refugee | Ruthless | Sanskrit | 1955 |
| Rumiss | Ruthless | Salmiss | 1955 |
| Routine | Ruthless | Faultina | 1955 |
| Desert Chief III | Ruthless | Zizette | 1956 |
| Our Sal | Ruthless | Sal | 1956 |
| Debeth | Ruthless | 1956 | |
| Rutha | Ruthless | Kumari | 1956 |
| Minus | Ruthless | Sal | 1957 |
| Golden Ruth | Ruthless | Pikitararua | 1957 |
| Royal Ruth | Ruthless | Brown Eyes | 1957 |
| Gold Ruth | Ruthless | Tranquil Gold | 1957 |
| Challen | Ruthless | Golden Climax | 1957 |