| 馬名 | 父 | 母 | 生年 | ファミリー |
|---|---|---|---|---|
| Super Snipe | Ruthless | Taupiri | 1946 | f1o |
| Lady Ruthex | Ruthless | Lady Ex | 1946 | f4c |
| Happy Medium | Ruthless | All Quiet | 1946 | f7d |
| Tupatiu | Ruthless | Lady Zephyr | 1947 | f11g |
| Jean | Ruthless | Joyous | 1947 | f5b |
| Felise | Ruthless | Balgowlah | 1947 | f24 |
| Rascoli | Ruthless | Ascoli | 1948 | f14e |
| Beet | Ruthless | Passion Flower | 1949 | c19 |
| Gendarme | Ruthless | Sal | 1949 | f2b |
| Erin Go Bragh | Ruthless | Duvach | 1949 | f8k |
| Toi Toi | Ruthless | Blissful Lady | 1950 | f7d |
| Oragonetta | Ruthless | Oragon | 1950 | f2g |
| Sou'East | Ruthless | Light Fantastic | 1951 | f18 |
| Intimate | Ruthless | Fleeting Fancy | 1951 | f20a |
| サールス | Ruthless | Sal | 1952 | f2b |
| Gay Jinx | Ruthless | Faultina | 1952 | f3j |
| Passive | Ruthless | Zenith | 1953 | f1g |
| Hyjest | Ruthless | Idle Jest | 1953 | f2o |
| Chutney | Ruthless | Piccalilli | 1954 | f14e |
| Messalina | Ruthless | Midpicca | 1955 | f7d |
| Refugee | Ruthless | Sanskrit | 1955 | f2g |
| Rutha | Ruthless | Kumari | 1956 | f3h |
| Desert Chief III | Ruthless | Zizette | 1956 | f2g |
| Royal Ruth | Ruthless | Brown Eyes | 1957 | f13a |
| Challen | Ruthless | Golden Climax | 1957 | f22b |
| Golden Ruth | Ruthless | Pikitararua | 1957 | f10d |
| Minus | Ruthless | Sal | 1957 | f2b |
| Gold Ruth | Ruthless | Tranquil Gold | 1957 | f11g |
| Kuini | Ruthless | Nizam's Belle | 1958 | f22b |