Career
Listed at 6 feet (18 metres) tall and 175 pounds (79 kg), he batted and threw right-handed. Born in Montréal, Québec, Calvert broke into professional baseball in 1938, appearing in three games for his hometown Royals. That led to his call up to the Indians in September 1942, when he made his MLB debut with two scoreless innings against the Chicago White Sox on September 24.
Calvert spent three full seasons—1944 and 1949–1950—in the big leagues.
His most notable campaign, 1949 with the Senators, saw him lead the American League in games lost (17) and in pitchers" fielding percentage (1000 in 55 chances). His minor league career essentially ended after the 1952 season, although he got into three games in 1955 with the Class C Modesto Reds.
Appearing in 109 MLB games (27 as a starting pitcher) and 301⅔ innings pitched, Calvert allowed 345 hits and 158 bases on balls. He struck out 102, threw five complete games and earned five saves.