Notable North American-Based Thoroughbreds

A B C D E F G H J K L M N O P Q R S T U V W X Y Z

IAGO (GB) C 1843 by Don John------Sirepage: Waverley

Notable Offspring:

Bonnie Scotland 1880-Leading Sire ,1882-Leading Sire

ICEBERG II (Chi) C 1948 by Espadin------Sirepage: Phalaris

56 13 10 11 $165,108

1953-Champion Turf Horse

ICECAPADE C 1969 by Nearctic------Sirepage: Nearco

Notable Offspring:

Izvestia 1987-Money Winner

Wild Again 1980-Money Winner ,1984-Breeders' Cup Classic winner

Other Sons With Notable Offspring:

Clever Trick

IDA PICKWICK F 1888 by Mr. Pickwick------Sirepage: Touchstone

98 43 20 11 $42,400

1888-Money Winner

IDENTIFY C 1931 by Man o' War------Sirepage: Man o' War

Notable Offspring:

Petrify 1941-Champion 2YO Filly

IDUN F 1955 by Royal Charger------Sirepage: Nearco

30 17 4 4 $392,490

1957-Champion 2YO Filly , 1957-TRA Champion 2YO Filly , 1958-Champion 3YO Filly , 1958-TRA Champion 3YO Filly

IFFRAAJ (GB) C 2001 by Zafonic------Sirepage: Native Dancer

Notable Offspring:

Chriselliam 2013-Breeders' Cup Juv Fillies Turf winner

ILDRIM C 1897 by Kingston------Sirepage: Melbourne

1900-Belmont Winner

ILE DE BOURBON C 1975 by Nijinsky II------Sirepage: Nearco

Notable Offspring:

Inlander 1987-Champion Steeplechase Horse

Other Sons With Notable Offspring:

Kahyasi

I'LL HAVE ANOTHER C 2009 by Flower Alley------Sirepage: Native Dancer

2012-Champion 3YO Colt/Gelding , 2012-Kentucky Derby Winner , 2012-Preakness Winner

IMBROS C 1950 by Polynesian------Sirepage: Phalaris

Notable Offspring:

Native Diver 1959-Money Winner ,1978-Elected to Hall of Fame

IMP F 1894 by Wagner------Sirepage: The Baron

171 62 35 29 $70,119

1894-Money Winner , 1965-Elected to Hall of Fame

IMPOUND C 1936 by Sun Beau------Sirepage: Sundridge

Notable Offspring:

Jam 1952-Champion Steeplechase Horse

IMPRESSION (ARG) C 1996 by Rubiano------Sirepage: Native Dancer

Notable Offspring:

Gloria de Campeao 2003-Money Winner

IMPRESSIVE C 1963 by Court Martial------Sirepage: Phalaris

41 13 6 5 $266,346

1966-Champion Sprinter

IN REALITY C 1964 by Intentionally------Sirepage: Man o' War

27 14 9 2 $795,824

1964-Money Winner , 1977-Leading Juvenile Sire

Notable Offspring:

Desert Vixen 1973-Champion 3YO Filly ,1974-Champion Older Filly/Mare ,1979-Elected to Hall of Fame

Smile 1986-Champion Sprinter ,1986-Breeders' Cup Sprint winner

Other Sons With Notable Offspring:

Relaunch Valid Appeal

IN THE WINGS (GB) C 1986 by Sadler's Wells------Sirepage: Nearco

11 7 1 0 $1,562,335

1990-Breeders' Cup Turf winner

Notable Offspring:

Singspiel 1992-Money Winner ,1996-Champion Turf Male

INDIAN BLESSING F 2005 by Indian Charlie------Sirepage: Nearco

2007-Champion 2YO Filly , 2007-Breeders' Cup Juvenile Fillies winner , 2008-Champion Female Sprinter

INDIAN CHARLIE C 1995 by In Excess------Sirepage: Nearco

Notable Offspring:

Fleet Indian 2006-Champion Older Filly/Mare

Indian Blessing 2007-Champion 2YO Filly ,2007-Breeders' Cup Juvenile Fillies winner ,2008-Champion Female Sprinter

Uncle Mo 2010-Champion 2YO Colt/Gelding ,2010-Breeders' Cup Juvenile winner ,2015-Leading Juvenile Sire

INDIAN HEMP (GB) C 1949 by Nasrullah------Sirepage: Nearco

Notable Offspring:

T.V. Lark 1957-Money Winner ,1961-Champion Turf Horse ,1974-Leading Sire

INDIAN RIDGE (Ire) C 1985 by Ahonoora------Sirepage: Tourbillon

Notable Offspring:

Domedriver 2002-Breeders' Cup Mile winner

Ridgewood Pearl 1995-Breeders' Cup Mile winner

Other Sons With Notable Offspring:

Definite Article

INFORMED DECISION F 2005 by Monarchos------Sirepage: Native Dancer

2009-Champion Female Sprinter , 2009-Breeders' Cup Filly/Mare Sprint winner

INLANDER (GB) G 1981 by Ile de Bourbon------Sirepage: Nearco

38 10 8 1 $233,148

1987-Champion Steeplechase Horse

INSCO C 1928 by Sir Gallahad III------Sirepage: Teddy

Notable Offspring:

Inscoelda 1938-Champion 2YO Filly

Lawrin 1938-Kentucky Derby Winner

Unerring 1939-Champion 3YO Filly

INSCOELDA F 1936 by Insco------Sirepage: Teddy

42 12 4 8 $38,970

1938-Champion 2YO Filly

INSIDE INFORMATION F 1991 by Private Account------Sirepage: Teddy

17 14 1 2 $1,641,806

1995-Champion Older Filly/Mare , 1995-Breeders' Cup Distaff winner , 2008-Elected to Hall of Fame

INSPECTOR B. C 1883 by Enquirer------Sirepage: Sir Hercules

1886-Belmont Winner

INTENT C 1948 by War Relic------Sirepage: Man o' War

Notable Offspring:

Intentionally 1956-Money Winner ,1959-Champion Sprinter

INTENTIONALLY C 1956 by Intent------Sirepage: Man o' War

34 18 7 2 $652,258

1956-Money Winner , 1959-Champion Sprinter

Notable Offspring:

In Reality 1964-Money Winner ,1977-Leading Juvenile Sire

Ta Wee 1969-Champion Sprinter ,1970-Champion Sprinter ,1994-Elected to Hall of Fame

INTERCONTINENTAL (GB) F 2000 by Danehill------Sirepage: Nearco

22 13 3 4 $2,052,463

2005-Champion Turf Filly/Mare , 2005-Breeders' Cup Filly/Mare Turf winner

INTO MISCHIEF C 2005 by Harlan's Holiday------Sirepage: Nearco

Notable Offspring:

Goldencents 2013-Breeders' Cup Dirt Mile winner ,2014-Breeders' Cup Dirt Mile winner

INVASOR (Arg) C 2002 by Candy Stripes------Sirepage: Nearco

2002-Money Winner , 2006-Horse of the Year , 2006-Champion Older Male , 2006-Breeders' Cup Classic winner , 2013-Elected to Hall of Fame

INVERNESS (GB) C 1888 by Cymbal------Sirepage: The Baron

Notable Offspring:

Scottish Chieftain 1897-Belmont Winner

INVINCIBLE SPIRIT (Ire) C 1997 by Green Desert------Sirepage: Nearco

Notable Offspring:

Vale of York 2009-Breeders' Cup Juvenile winner

IRISH CASTLE C 1967 by Bold Ruler------Sirepage: Nearco

Notable Offspring:

Bold Forbes 1976-Champion 3YO Colt/Gelding ,1976-Kentucky Derby Winner ,1976-Belmont Winner

IRISH LAD C 1900 by Candlemas------Sirepage: Touchstone

33 12 5 2 $99,250

1900-Money Winner

IRISH RIVER (Fr) C 1976 by Riverman------Sirepage: Nearco

Notable Offspring:

Hatoof 1994-Champion Turf Filly/Mare

Paradise Creek 1989-Money Winner ,1994-Champion Turf Male

IRON LIEGE C 1954 by Bull Lea------Sirepage: Teddy

33 11 9 5 $404,169

1957-Kentucky Derby Winner

IRON RULER C 1965 by Never Bend------Sirepage: Nearco

Notable Offspring:

Aloma's Ruler 1982-Preakness Winner

IROQUOIS C 1878 by Leamington------Sirepage: Sir Hercules

1892-Leading Sire

Notable Offspring:

Tammany 1889-Money Winner

Other Sons With Notable Offspring:

G.W. Johnson

IS IT TRUE C 1986 by Raja Baba------Sirepage: Nearco

15 5 2 2 $819,999

1988-Breeders' Cup Juvenile winner

Other Sons With Notable Offspring:

Yes It's True

ISINGLASS (GB) C 1890 by Isonomy------Sirepage: Sir Hercules

Notable Offspring:

Star Shoot 1911-Leading Sire ,1912-Leading Sire ,1916-Leading Sire ,1917-Leading Sire ,1919-Leading Sire

Other Sons With Notable Offspring:

John o' Gaunt

ISLAND WHIRL C 1978 by Pago Pago------Sirepage: Phalaris

34 11 6 6 $1,144,010

1978-Money Winner

ISLINGTON (Ire) F 1999 by Sadler's Wells------Sirepage: Nearco

15 6 0 4 $1,553,043

2003-Champion Turf Filly/Mare , 2003-Breeders' Cup Filly/Mare Turf winner

ITAJARA C 1983 by Felicio------Sirepage: Prince Rose

Notable Offspring:

Siphon 1991-Money Winner

IT'S IN THE AIR F 1976 by Mr. Prospector------Sirepage: Native Dancer

43 16 9 6 $892,339

1978-Champion 2YO Filly

IT'S THE ONE C 1978 by Dewan------Sirepage: Nearco

28 9 7 9 $1,038,444

1978-Money Winner

ITSALLGREEKTOME G 1987 by Sovereign Dancer------Sirepage: Nearco

29 8 10 2 $1,994,618

1990-Champion Turf Male

IVAN THE TERRIBLE C 1902 by Pirate of Penzance------Sirepage: The Baron

Notable Offspring:

Hodge 1911-Money Winner

IZVESTIA C 1987 by Icecapade------Sirepage: Nearco

21 11 2 2 $2,702,527

1987-Money Winner