Igual (牝 1937 栗毛 Equipoise)
 |-- Sin Igual (牝 1952 栗毛 Bold Venture)
 |   `-- Mono (牝 1963 鹿毛 Better Self)
 |       |-- Rare Performer (牡 1977 鹿毛 Mr. Prospector)
 |       `-- Mine Only (牝 1981 鹿毛 Mr.Prospector)
 |-- Equal Venture (牝 1953 栗毛 Bold Venture)
 |   |-- Saidam (牡 1959 栗毛 Never Say Die)
 |   |-- Fairness (牝 1963 栗毛 Cavan)
 |   |   |-- Equal Change (牝 1972 栗毛 Arts and Letters)
 |   |   |-- No Duplicate (牝 1973 栗毛 Arts and Letters)
 |   |   |-- Lagrimas (牝 1974 Jacinto)
 |   |   |-- Solford (牡 1980 鹿毛 Nijinsky)
 |   |   `-- Ethics (牝 1982 鹿毛 Nijinsky)
 |   |-- Esputal (牝 1964 栗毛 Bold Ruler)
 |   |   `-- Menocal (牡 1971 栗毛 Graustark)
 |   |-- Prove Out (牡 1969 栗毛 Graustark)
 |   `-- Country Dream (牝 1970 鹿毛 Ribot)
 |       `-- Midyan (牡 1984 鹿毛 Miswaki)
 `-- Balanca (牝 1955 栗毛 Bold Venture)
     `-- Bella Max (牝 1959 青鹿毛 Beau Max)
         `-- ウオーホイツスル War Whistle [英] (牝 1968 黒鹿毛 Whistler)