Born on November 10, 1930, in Muskogee, Oklahoma, Donald Eugene “Gene” Conley built a sporting résumé that remains unique: he is the only athlete to win both a World Series championship and an NBA title. His success as a major-league pitcher and professional basketball player made him an unusual figure even among two-sport athletes.
In 1957, Conley helped the Milwaukee Braves win the World Series over the New York Yankees. Working as both a starter and reliever, he finished the regular season with a 9–9 record and a 3.16 ERA, contributing to a team whose stars included Hank Aaron. His role in the Series itself was limited to one relief appearance, but the championship gave him the first half of his extraordinary distinction.
The other half came with the Boston Celtics. Playing forward under coach Red Auerbach, Conley was part of three consecutive NBA championship teams from 1959 through 1961. He was a supporting player rather than the face of the dynasty, but his contributions were tangible: in the 1959–60 regular season, he averaged 6.7 points and 8.3 rebounds per game.
Moving between the two sports also created practical conflicts. The Celtics’ championship run delayed his arrival at the Braves’ spring training in 1959—a revealing example of the competing demands he navigated. Conley’s legacy rests not on dominating either sport single-handedly, but on earning a place on championship teams in both. That distinction needs little embellishment.
