血統表（So Tough）

So Tough2014 GER [産駒]	ロックオブジブラルタルRock of Gibraltar1999 IRE [産駒]	デインヒルDanehill1986 USA [産駒]	Danzig1977 USA [産駒]	Northern Dancer1961 CAN	Nearctic1954 CAN

					Natalma1957 USA

				Pas de Nom1968 USA	Admiral's Voyage1959 USA

					Petitioner1952 GB

			Razyana1981 USA [産駒]	His Majesty1968 USA	Ribot1952 ITY

					Flower Bowl1952 USA

				Spring Adieu1974 CAN	Buckpasser1963 USA

					Natalma1957 USA

		Offshore Boom1985 IRE [産駒]	Be My Guest1974 USA [産駒]	Northern Dancer1961 CAN	Nearctic1954 CAN

					Natalma1957 USA

				What a Treat1962 USA	Tudor Minstrel1944 GB

					Rare Treat1952 USA

			Push a Button1980 IRE [産駒]	Bold Lad1964 IRE	Bold Ruler1954 USA

					Barn Pride1957 GB

				River Lady1963 USA	Prince John1953 USA

					Nile Lily1954 USA

	So Smart2009 GER [産駒]	Selkirk1988 USA [産駒]	Sharpen Up1969 GB [産駒]	エタンAtan1961 USA	Native Dancer1950 USA

					Mixed Marriage1952 GB

				Rocchetta1961 GB	Rockefella1941 GB

					Chambiges1949 FR

			Annie Edge1980 IRE [産駒]	Nebbiolo1974 GB	イエローゴツドYellow God1967 IRE

					Novara1965 GER

				Friendly Court1971 IRE	Be Friendly1964 GB

					No Court1961 IRE

		So Squally2004 GER [産駒]	Monsun1990 GER [産駒]	Konigsstuhl1976 GER	Dschingis Khan1961 GER

					Konigskronung1965 GER

				Mosella1985 GER	Surumu1974 GER

					Monasia1979 GER

			So Sedulous1991 USA [産駒]	The Minstrel1974 CAN	Northern Dancer1961 CAN

					Fleur1964 CAN

				Sedulous1986 IRE	タツプオンウツドTap on Wood1976 IRE

					Pendulina1978 GB