Top Thoroughbred Horses of All Time

Secretariat (USA, 1970–1989)

Widely considered the greatest racehorse ever

  • Won the 1973 Triple Crown in record-breaking times (still standing)

  • Belmont Stakes victory by 31 lengths — unmatched in history

Man o’ War (USA, 1917–1947)

  • Won 20 of 21 races

  • Dominated so thoroughly that other horses often avoided racing him

  • Became a foundational sire in breeding

American Pharoah (USA, b. 2012)

  • First Triple Crown winner in 37 years (2015)

  • Also won the Breeders’ Cup Classic (first “Grand Slam” winner)

  • Known for smooth, effortless stride

Justify (USA, b. 2015)

  • Won the Triple Crown in 2018

  • Undefeated in all 6 career races

  • Rare for winning without racing as a 2-year-old

Seattle Slew (USA, 1974–2002)

  • 1977 Triple Crown winner

  • Only horse to win it while undefeated

  • Influential sire line

Affirmed (USA, 1975–2001)

  • 1978 Triple Crown winner

  • Famous rivalry with Alydar

  • Known for grit and consistency

Share This Post:

Welcome to the Thoroughbred Woman Blog!

Read articles, thoughts, and encouragement to help you run your race.

Content by Category

About The Author

Amy Stephens

Amy Stephens is a former Colorado House Majority Leader, national advocate for children and families, and longtime leader at the intersection of faith, policy, and purpose. With more than three decades of experience—including roles with Focus on the Family, the U.S. Administration for Children and Families, and Dentons—she brings both policy expertise and personal conviction to her work. Amy writes with authenticity and perspective. She is the founder of Thoroughbred Woman, encouraging women to embrace who God created them to be and run their race with confidence.