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Sire Tim Tam
Dam Cosmah
Grandsire Tom Fool
Damsire Cosmic Bomb
Gender Filly
Foaled 1961
Country United States
Color Bay
Breeder Eugene V. Mori
Owner Briardale Farm
Anthony Imbesi
Trainer Joseph W. Mergler
Record 39: 23-6-2
Earnings $612,588
Tosmah is a thoroughbred racehorse out of Cosmah by Tim Tam. She was born around 1961 in the United States, and was bred by Eugene V. Mori.
Major wins
Frizette Stakes (1963)
Astarita Stakes (1963)
Mermaid Stakes (1963)
Arlington Classic (1964)
Arlington Matron Handicap (1964)
Beldame Stakes (1964)
Liberty Bell Handicap (1964)
Maskette Handicap (1964 & 1965)
Jersey Belle Tercentenary Stakes (1964)
Quaker City Handicap (1964)
Miss Woodford Stakes (1964)
Colonial Handicap (1966)
Barbara Fritchie Handicap (1966)
John B. Campbell Handicap (1966)
American Champion Two-Year-Old Filly (1963)
American Champion Three-Year-Old Filly (1964)
American Co-Champion Older Female Horse (1964)
U.S. Racing Hall of Fame (1984)
Tosmah Handicap at Arlington Park
Horse (Equus ferus caballus)
Last updated on December 22, 2007

Tosmah (1961–1992) was a champion Thoroughbred race horse bred in Kentucky by Eugene Mori.

Her sire was the great Tim Tam, by Tom Fool out of Two Lea. Many consider Tim Tam's loss of Thoroughbred racing's American Triple Crown only a matter of fate. After winning the first two legs (Kentucky Derby and Preakness Stakes), he was leading in the Belmont Stakes when he broke down, coming in second. Retired early, he went on as a sire, producing a number of stakes winners. Tosmah is considered his very best. Her dam, Cosmah, was the 1974 Kentucky Broodmare of the Year, who also produced Halo, who sired Sunny's Halo and Sunday Silence.

Tim Tam and Cosmah's daughter raced for four years—1963 to 1966.

At the age of two, she started eight times and lost only once. For this, she was named the American Champion Two-Year-Old Filly of 1963. (This was before the Eclipse Awards when championships were determined by the Daily Racing Form and the Thoroughbred Racing Association. More than once, these two bodies voted for different horses. In Tosmah's second year the Daily Racing Form considered her the best filly, while the TRA voted for Castle Forbes.)

When Tosmah was three, she started in fourteen races, winning ten, vying all year with a splendid filly called Old Hat. 1964 saw her highest earnings, $305,283, and two more championships: American Champion Three-Year-Old Filly and American Champion Older Female Horse, the latter title shared with Old Hat.

In 1965, at the age of four she won her second Maskette Handicap (now known as the Go For Wand Handicap) under 128 pounds, in the process beating the great filly Affectionately, no. 81 in the Blood-Horse magazine List of the Top 100 U.S. Racehorses of the 20th Century, in a driving finish.

In her final season, Tosmah defeated Lucky Debonair, the winner of the 1965 Kentucky Derby, in the John B. Campbell Handicap.

As a broodmare

Of four foals, Tosmah gave birth to only one stakes winner, La Guidecca.

She died in 1992 and is buried at Briardale Farm, Estell Manor, New Jersey.

Tosmah was inducted into the Hall of Fame in 1984.


  • "Champions, The Lives, Times, and Past Performances of America's Greatest Thoroughbreds, Revised Edition, Champions from 1893-2004," the Daily Racing Form


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