The Most Famous Racehorses, Ranked

Last updated: June 3, 2026

By: Miles HenryFact Checked

Some racehorses are remembered for sheer dominance on the track, while others became legends because their stories captured the public imagination. This list highlights both kinds — the champions defined by performance and the icons defined by cultural impact. For a strictly performance-based ranking, see the greatest racehorses of all time.

Most famous racehorses — record, era, and why they became famous

Horse	Record	Era	Why Famous
Man o’ War	20–1	1919–1920	Dominated an era; named Horse of the Century; sired Triple Crown winner War Admiral
Secretariat	16–3–1	1972–1973	1973 Triple Crown; record-setting Belmont; symbol of American excellence
Seabiscuit	33–15–13	1935–1940	Great Depression symbol; won “Match of the Century” vs War Admiral; book and film adaptations
American Pharoah	11–2–0	2014–2015	Ended 37-year Triple Crown drought; first American Grand Slam winner
Frankel	14–0	2010–2012	Undefeated; highest Timeform rating in modern history (147)
Black Caviar	25–0	2009–2013	Undefeated; 15 Group 1 wins; appeared on postage stamps
Phar Lap	37–3–2	1929–1932	Australian national hero; mysterious death; heart preserved at National Museum
Winx	37–1–3	2013–2019	33 consecutive wins; world’s top-ranked horse four consecutive years
Seattle Slew	14–2–1	1976–1978	Purchased for $17,500; won Triple Crown undefeated
Flightline	6–0	2021–2022	Dominant Breeders’ Cup Classic victory by 19¼ lengths; retired undefeated
Ruffian	10–0 (DNF)	1974–1975	Undefeated filly; catastrophic injury triggered lasting safety reforms in racing

1. Man o’ War

Man o’ War — one of the most documented horses in American sports history — won 20 of his 21 races between 1919 and 1920, set multiple world records while carrying weights modern horses rarely see, and became famous enough that his funeral in 1947 was broadcast on radio to a nationwide audience. The Blood-Horse named him Horse of the Century. His only loss came in a race where he was reportedly facing the wrong direction at the start — he still finished second.

2. Secretariat

Secretariat became famous before he’d proven anything: he appeared on the covers of Time, Newsweek, and Sports Illustrated in the same week as a two-year-old, the first entity to ever do so. By the end of his three-year-old season in 1973, he’d earned it. His 31-length Belmont Stakes win in 2:24 flat is still the record — Secretariat’s career is detailed in full at Britannica. His Kentucky Derby time of 1:59 2/5 is still the record. His Preakness time of 1:53 was officially confirmed as the record by the Maryland Racing Commission in 2012.

3. Seabiscuit

Seabiscuit’s racing record — 33 wins from 89 starts — doesn’t place him among the greatest by performance metrics. He’s on this list because his story connected with something beyond racing. During the Great Depression, an undersized horse with a turned-out knee who’d been overlooked and poorly handled became the most talked-about athlete in America. His 1938 match race against War Admiral — Man o’ War’s son, the reigning Triple Crown winner — drew a radio audience of 40 million people at a time when the U.S. population was 130 million.

4. American Pharoah

American Pharoah ended a 37-year Triple Crown drought in 2015 — the longest gap between Triple Crown winners in the history of the Triple Crown series. Thirteen horses had won the first two legs of the Triple Crown since Affirmed in 1978 without completing the sweep. American Pharoah did it, then added the Breeders’ Cup Classic to complete the first “Grand Slam” of American racing. His trainer Bob Baffert, jockey Victor Espinoza, and owner Ahmed Zayat had a horse that delivered exactly when the sport needed it most.

5. Frankel

Frankel retired in 2012 having won all 14 of his races, with a Timeform rating of 147 — the highest ever assigned to any horse in the modern era. Trained by Sir Henry Cecil at Newmarket and ridden by Tom Queally, he was named after the legendary American trainer Bobby Frankel. His 2000 Guineas win by six lengths in 2011 was the defining early performance. His Juddmonte International in 2012 — a Group 1 on a track considered better suited to stamina horses — expanded the case that he could do anything at any distance.

6. Black Caviar

Black Caviar retired undefeated in 25 starts, with 15 Group 1 victories across Australia and England. She became a cultural phenomenon in Australia — appearing on postage stamps, drawing record crowds to her home tracks, and inspiring a statue in Nagambie. When she was shipped to Royal Ascot in 2012 for the Diamond Jubilee Stakes and won despite being below peak fitness after the long flight, trainer Peter Moody famously apologized to the crowd for the narrow margin. She was never beaten.

7. Phar Lap

Phar Lap was born in New Zealand in 1926, trained in Australia, and became the country’s most beloved sporting figure during the Depression years. His name means “lightning” in Zhuang. He won 37 races from 51 starts, including the Melbourne Cup and the Cox Plate, under trainer Harry Telford. His final start — the Agua Caliente Handicap in Tijuana, Mexico in March 1932 — was his first race on foreign soil. He won by two lengths. Sixteen days later he was dead, the cause never definitively determined. His heart, on display at Australia’s National Museum in Canberra, is roughly twice the size of an average horse’s. If you want to understand why Phar Lap is famous, watch the 1983 Australian film about his life.

8. Winx

Winx compiled a 33-race winning streak between 2015 and 2019 — the longest in Australian Thoroughbred history. Trained by Chris Waller and ridden almost exclusively by Hugh Bowman, she won the Cox Plate four consecutive times, was ranked the world’s best racehorse four consecutive years by the Longines World’s Best Racehorse Rankings, and retired in April 2019 with a career record of 37 wins from 43 starts. She never raced outside Australia, which is the main reason she’s not ranked higher on pure performance lists — but within Australian racing, her fame surpassed every horse since Phar Lap.

9. Seattle Slew

Seattle Slew was purchased for $17,500 at a yearling sale — a figure that looks more absurd with each passing decade. He was the first horse to win the Triple Crown while undefeated, doing so in 1977 under trainer Billy Turner and jockey Jean Cruguet. He then survived a life-threatening illness in his prime, came back, and ran a mile and an eighth in 1:45 4/5, two-fifths of a second off the world record. His sire career produced A.P. Indy, who became one of the most influential sires in North American breeding history.

10. Flightline

Flightline retired in late 2022 with a record of 6 wins from 6 starts. He became famous in a single afternoon: his 2022 Breeders’ Cup Classic win by 19¼ lengths posted a Beyer Speed Figure of 134 — among the highest figures recorded in modern racing. For people who watched that race, the margin looked like a different division of competition. He’d already won the Pacific Classic by 19½ lengths and the Met Mile by 9¾. He was retired shortly after the Breeders’ Cup in his prime, which is what keeps him from a higher ranking by career length — but the performances he produced are among the most dominant in the modern era.

11. Ruffian

Ruffian won her first 10 races, breaking or equaling track records in the first eight. She swept the 1975 New York Filly Triple Crown — the Acorn Stakes, Mother Goose Stakes, and Coaching Club American Oaks — setting new stakes records in all three. On July 6, 1975, she entered a match race against Kentucky Derby winner Foolish Pleasure. She broke down catastrophically with more than half the race remaining, fracturing both sesamoid bones in her right front leg. She was euthanized after surgery. She was three years old. Her story is on this list not just because of what she accomplished, but because of what she started: the conversation about racehorse welfare that changed how the industry thinks about the horses it runs.

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