Westchester Handicap (1919)
Aqueduct Handicap (1920)
Dwyer Stakes (1920)
Jerome Handicap (1920)
Jockey Club Gold Cup (1920)
Manhattan Handicap (1920)
Saranac Handicap (1920)
Saratoga Handicap (1920)
Stuyvesant Handicap (1920)
Withers Stakes (1920, 1922)
Astoria Stakes (1921)
Carter Handicap (1921)
Demoiselle Stakes (1921)
Suburban Handicap (1921, 1927)
Toboggan Handicap (1921)
Adirondack Stakes (1922)
Tremont Stakes (1921, 1922)
Hopeful Stakes (1922)
Maryland Handicap (1922)
Paumonok Handicap (1924)
Mount Vernon Handicap (1924)
International Special No.2 (1924)
Travers Stakes (1925)
Clarence Kummer (August 8, 1899 - December 18, 1930) was a U.S. Racing Hall of Fame jockey who won four American Classic Races.
In early 1920, Kummer rode the 1919 Triple Crown Champion Sir Barton to a new Saratoga track record in winning the Saratoga Handicap. In May 1920 he was given the opportunity to ride Man o' War. He rode the horse to nine wins in nine starts. Kummer's successes in 1920 made him that year's top money-winning jockey in the United States.