The only team he could beat, beat him

With the Boston/Milwaukee Braves and Chicago Cubs 1950-54, pitcher David Cole’s won-loss record was 6-15. On March 19, 1955, Cole was sold to the Philadelphia Phillies.

“That’s too bad,” he said. “They’re the only team I can beat.”

With the Phillies in the 1955 season, Cole’s won-loss record was 0-3.

http://www.baseball-almanac.com/players/player.php?p=coleda01

In Cole’s first major league game (Sept. 9, 1950), he pitched one inning of relief, giving up two hits and one earned run. He was the losing pitcher. Against the Phillies. So, his first loss was against Philadelphia, and his last loss was while playing for the Phillies.