Reynolds had a good minor-league career, posting a 117–89 won–lost record and a 3.65 career earned run average in 282 games over 12 seasons. But he failed to carry over that success to the major leagues. He lost 29 of his 36 MLB-career decisions (yielding a poor .269 winning percentage), although he played largely for losing teams. In , he lost 15 games and won only two while a member of the last-place Phillies, who dropped 97 of their 156 games played that strike-shortened season. He lost 12 straight decisions from the start of 1972, tying a National League record. That campaign was Reynolds' last full year in the majors; he split the , and seasons between the big leagues and the minors. In 375 total MLB innings pitched, he surrendered 370 hits and 196 bases on balls, with 197 strikeouts. His total pro career lasted for 14 years (1966–1979).