Due to the shoulder and arm problems he faced over the course of his playing career, Tewksbury became known as an excellent
control pitcher.
[9] His best year was 1992, in which he went 16-5 on the season and had a 2.16
ERA in 233 innings pitched. He appeared in the All-Star game
[10] and was third in the
Cy Young Award voting that year.
[11] His injury problems marred his success from that point forward, with his best post-Cardinals year being in San Diego, where he helped the Padres capture the NL West division title.
In 1992 Tewksbury walked only 20 batters in 233 innings, the best ratio in the major leagues in over half a century. The next season Tewksbury came very close to ending the season with more wins than bases on balls allowed, an elusive feat only accomplished 4 times by 3 different starting pitchers in MLB history. He had 17 wins with only 18 walks allowed late in the season but gave up a walk apiece in his last two starts and did not achieve a win in either game, ending the season with 17 wins on 20 walks.