Canada’s lone representative in Major League Baseball since the Expos relocated, the Toronto Blue Jays joined the American League in 1977 and developed into a winning franchise shortly thereafter. From 1985 to 1993, the Blue Jays went to the playoffs five times and won the World Series twice. The pitching catalysts for those teams include four of the top five Toronto Blue Jays’ all-time win leaders: Dave Stieb, Jimmy Key, Jim Clancy, and Pat Hentgen.
5. Pat Hentgen: 107 wins
An ace for the team in the 1990s, Pat Hentgen ranks fifth among the Toronto Blue Jays’ all-time wins leaders. Hentgen began his career in Toronto in 1991 and pitched ten of his 14 Major League seasons with the team. A great innings-eater, he made three All-Star appearances with the Blue Jays as he earned double-digit wins seven straight times from 1993 to 1999. In 1996, Hentgen won 20 games and opened the flood gates when he became the first Blue Jays’ pitcher to win a Cy Young Award; Roger Clemens, then with the Jays, won it in each of the next two seasons.
4. Jimmy Key: 116 wins
One of Toronto’s top pitchers of the 1980s, left-hander Jimmy Key ranks fourth among the Blue Jays all-time wins leaders. Key broke into the Majors in 1984 as a reliever for the Blue Jays. He became a full-time starter and a first-time All-Star in his second season with a 14-6 record and 3.00 ERA in 212.2 innings. Key was consistently great for the Blue Jays, winning between 12 and 17 games in each of his eight seasons as a starter. He led the AL in both ERA (2.76) and WHIP (1.06) in 1987 with 17 wins to finish second in the Cy Young voting. Key won two games in the 1992 World Series as the Blue Jays won their first title.
3. Jim Clancy: 128 wins
Tall right-hander Jim Clancy had a long career in Toronto to become one of the Blue Jays’ all-time wins leaders. Clancy spent his first 12 seasons in Toronto from 1977 to 1988 with a lone All-Star appearance coming in 1982. He won 15 games three times and was in double-figures eight times for the Jays. In 2,204.2 innings in Toronto, Clancy had a 4.10 ERA with a career best 3.30 ERA in the 1980 season.
2. Roy Halladay: 148 wins
The ace of the team for most of the 2000s, the dominant Roy Halladay ranks second on the Toronto Blue Jays’ all-time wins leaders list. Halladay made his Major League debut with the Jays in 1998 and became their premier pitcher in 2002. From 2002 to 2009, Halladay led the American League in innings three times, totaling 2,046.2 during his tenure. The seven-time All-Star notched two 20-win seasons, first in 2003 when he won 22 games with a 3.25 ERA and won the Cy Young Award. Halladay was great in baseball’s best offensive division, winning 15-plus games six times with the Blue Jays. In 2010, he was traded to Philadelphia where he continues to be one of the best pitchers in baseball.
1. Dave Stieb: 175 wins
Seven-time All-Star Dave Stieb is the Toronto Blue Jays’ all-time wins leader. Stieb pitched all but four games of his 15-year career for Toronto, tossing 2,873 innings with the Blue Jays to set team records in several categories including wins, complete games, shutouts, and strikeouts. He won at least 11 games all but once from 1980 to 1990 as one of baseball’s best pitchers of the 1980s. The owner of Toronto’s only no-hitter accomplished the feat in 1990 when he won a career-high 18 games with a 2.93 ERA to earn his final All-Star appearance. He led the AL in innings twice and ERA once
* Indicates the player is active with the team.
Toronto Blue Jays Player Career Pitching Register. Baseball-Reference.com