Thomas Halpin (May 17, 1892 – September 9, 1960) was an American middle distance runner who competed in the 1912 Summer Olympics.[1][2]
References
External links
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| 1876-1979 Amateur Athletic Union
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| 1980-1992 The Athletics Congress
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| 1992 onwards USA Track & Field
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| Notes | 
Note 1: In 1888 both the NAAAA and the AAU held championships
 OT: The 1920, 1928, 1932, and since 1992, championships incorporated the Olympic Trials, otherwise held as a discrete event.
 2020 OT: The 2020 Olympic Trials were delayed and held in 2021 due to the COVID-19 pandemic.
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| 1906–1979 Amateur Athletic Union
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1906: Eli Parsons1907: Eli Parsons1908: Mel Sheppard1909: Mel Sheppard1910: Harry Gissing1911: Abel Kiviat1913: Abel Kiviat1914: 1915: 1916: William Bingham1917: Earl Eby1918: Marvin Gustavson1919: Jack Sellers1920: Earl Eby1921: Fred Murrey1922: Sid Leslie1923: Earl Eby1924: Walter Mulvihill1925: Vincent Lally1926: Horatio Fitch1927: George Leness1928: .svg.png) Phil Edwards (BGU), George Leness (2nd)1929: .svg.png) Phil Edwards (BGU), Eddie Blake (2nd)1930: .svg.png) Phil Edwards (BGU), Eddie Roll (2nd)1931: .svg.png) Phil Edwards (BGU), Eddie Blake (4th)1932: .svg.png) Alex Wilson (CAN), Edwin Roll (2nd)1933: Milton Sandler1934: Milton Sandler1935: Milton Sandler1936: Edward O'Brien1937: Edward O'Brien1938: Jim Herbert1939: Charles Beetham1940: Charles Belcher1941: Jim Herbert1942: Roy Cochran1943: Lewis Smith1944: Bob Ufer1945: Elmore Harris1946: Elmore Harris1947: George Guida1948: Dave Bolen1949: Dave Bolen1950: Hugo Maiocco1951: Hugo Maiocco1952: Charles Moore1953: Mal Whitfield1954: Reggie Pearman1955: Charles Jenkins Sr.1956: Lou Jones1957: Charles Jenkins Sr.1958: Charles Jenkins Sr.1959: Josh Culbreath1960: Tom Murphy1961: Eddie Southern1962: .svg.png) Bill Crothers (CAN), Jack Yerman (2nd)1963: Jack Yerman1964: Charles Buchta1965: Jack Yerman1966: Theron Lewis1967: Jim Kemp1968: Martin McGrady1969: Martin McGrady1970: Martin McGrady1971:  Andrzej Badeński (POL), Tom Ulan (3rd)1972: Lee Evans1973: Fred Newhouse1974: Wes Williams1975: Wes Williams1976: .svg.png) Fred Sowerby (ANT), Stan Vinson (2nd)1977: .svg.png) Fred Sowerby (ANT), Kevin Prince (2nd)1978: Stan Vinson1979:  Mike Solomon (TRI), Stanley Vincent (3rd)
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| 1980–1992 The Athletics Congress
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| 1993–present USA Track & Field
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| Notes | *Distances have varied as follows: 600 yards (1906–1986), 500 meters (1987–1993) except 600 meters (odd numbered years since 2015) | 
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