Turley played his first game in the major leagues on September 29, 1951. He lost to the Chicago White Sox. He did not pitch again in 1951, and after the season ended, he enlisted with the United States Army for two years. Turley returned to the Browns in August 1953, and caught attention for his high strikeout rate. Turley remained with the team after they moved to Baltimore, Maryland, to become the Baltimore Orioles in 1954. He earned $9,000 ($ in current dollar terms) for the 1954 season. He pitched the first game at Memorial Stadium, striking out nine in a complete game. A power pitcher, Turley recorded many strikeouts, but did not have great control. For the 1954 season, he led the American League in strikeouts with 185, but also led the league with 181 walks. That year, he earned comparisons to fellow fireballer Bob Feller, and finished in third place in balloting for the Hickok Belt, given to the professional athlete of the year.