血統表（Circus Key）

Circus Key2005 IRE [産駒]	Key of Luck1991 USA [産駒]	Chief's Crown1982 USA [産駒]	Danzig1977 USA [産駒]	Northern Dancer1961 CAN	Nearctic1954 CAN

					Natalma1957 USA

				Pas de Nom1968 USA	Admiral's Voyage1959 USA

					Petitioner1952 GB

			Six Crowns1976 USA [産駒]	Secretariat1970 USA	Bold Ruler1954 USA

					Somethingroyal1952 USA

				Chris Evert1971 USA	Swoon's Son1953 USA

					Miss Carmie1966 USA

		Balbonella1984 FR [産駒]	ゲイメセンGay Mecene1975 USA [産駒]	Vaguely Noble1965 IRE	ヴイエナVienna1957 GB

					Noble Lassie1956 GB

				Gay Missile1967 USA	Sir Gaylord1959 USA

					Missy Baba1958 USA

			Bamieres1978 FR [産駒]	Riverman1969 USA	Never Bend1960 USA

					River Lady1963 USA

				Bergamasque1969 FR	Kashmir1963 IRE

					Bergame1963 FR

	Circassienne2000 USA [産駒]	スピニングワールドSpinning World1993 USA [産駒]	Nureyev1977 USA [産駒]	Northern Dancer1961 CAN	Nearctic1954 CAN

					Natalma1957 USA

				Special1969 USA	Forli1963 ARG

					Thong1964 USA

			Imperfect Circle1988 USA [産駒]	Riverman1969 USA	Never Bend1960 USA

					River Lady1963 USA

				Aviance1982 IRE	Northfields1968 USA

					Minnie Hauk1975 USA

		Berine1992 IRE [産駒]	Bering1983 FR [産駒]	Arctic Tern1973 USA	Sea-Bird1962 FR

					Bubbling Beauty1961 USA

				Beaune1974 FR	Lyphard1969 USA

					Barbra1969 FR

			Oczy Czarnie1986 USA [産駒]	Lomond1980 USA	Northern Dancer1961 CAN

					My Charmer1969 USA

				Gracious Lassie1977 IRE	Kalamoun1970 GB

					Gracious1972 IRE