Arpad Emrick Elo (born Élő Árpád Imre[1][2], August 25, 1903 in Egyházaskesző, Hungary – November 5, 1992 in Brookfield, Wisconsin) is the creator of the Elo rating system for two-player games such as chess. Born in Hungary, he moved to the United States with his parents as a child in 1913.
Elo was a professor of physics at Marquette University in Milwaukee, Wisconsin. He was also a chess master. By the 1930s he was the strongest chess player in Milwaukee, one of the nation's leading chess cities. He won the Wisconsin State Championship eight times.[3]
Elo died in Brookfield, Wisconsin in 1992.