Minor Leagues After being drafted in 1986, Hentgen pitched with the
St. Catharines Blue Jays at the Short-Season A level, putting up a 4.50 ERA over 40 innings. He struck out 30 batters, and walked 30 batters, leading to both a K/9 and BB/9 of 6.8. He also recorded one of only two saves in his professional career. He spent 1987-1989 at the A-level, first with the Low-A
Myrtle Beach Blue Jays in 1987, and then the High-A
Dunedin Blue Jays between 1988-1989. In 1987, Hentgen performed very well, posting a 2.35 ERA over 188 innings, while maintaining his strikeout rate and greatly lowering his walk rate. In 1988, he recorded a 3.45 ERA over 151.1 innings but had 22 unearned runs. He won just 3 games that year and lost 12. He also noticeably raised his strikeout numbers, punching out 125 batters, although his walk numbers rose slightly as well. He threw 151.1 innings again in 1989, this time with a 2.68 ERA. His strikeouts increased greatly again, to 148, and his walks again rose slightly. In 1990, Hentgen made it to the Double-A
Knoxville Blue Jays. His numbers stayed consistent, throwing 153.1 innings with a 3.05 ERA, 142 strikeouts, and 68 walks. In 1991, he was promoted again to the Triple-A
Syracuse Chiefs. In 171 innings in Syracuse, Hentgen's numbers worsened, putting up a 4.47 ERA with 90 walks and an 8-9 record. One stat that remained strong were his strikeouts, recording 155 and leading the
International League. He was promoted to the Toronto Blue Jays at the end of the season as a
september call-up. Hentgen would be sent down a couple times in 1992, making 4 starts in Syracuse. Over those 4 starts, he recorded 20.1 innings, a 2.66 ERA and 17 strikeouts. Hentgen would return to the minor leagues in 2002 while with the
Baltimore Orioles. He threw 32.2 innings over 6 starts at five different levels in the Orioles organization, posting a 2.20 ERA.
Toronto Blue Jays (1991-1998) 1991-1992 Hentgen made his major league debut with the Blue Jays on September 3, 1991, throwing two innings against the Baltimore Orioles. He faced 8 batters, struck out one and walked two. He would throw 0.1 inning against the
Minnesota Twins, allowing a run, before making his first start on the last day of the Blue Jays season in Minnesota, going 5 innings and allowing a run in a win. Hentgen began the 1992 season in the Jays bullpen. His season began with a two inning hold against the
Detroit Tigers on April 8. He operated mainly as a long reliver, often entering in middle innings and blowout games, with his longest relief outing being 4.2 scoreless innings against the
Texas Rangers on June 29. His other outings over 2 innings were 2.2 scoreless innings against the
Boston Red Sox, and 3.2 scoreless against the
Seattle Mariners. He made 2 starts at the start of July, allowing 5 runs in 8 innings between them, although the second start lasted just one inning. Hentgen was sent down to Syracuse several times throughout the season, and on August 12, he was sidelined with a non-disclosed injury, after which he only appeared once more, causing him to miss the Blue Jays
World Series win. Despite not playing in the 1992 World Series, he was awarded a ring. Hentgen finished the 1992 season having pitched 50.1 innings with a 5.36 ERA. He pitched in 28 games with a 5-2 record, and also recorded a hold and a blown save. He struck out 39 batters, and his walk numbers rose dramatically from his minor league numbers, giving up 32 bases on balls. His 5.7 BB/9 was the highest in his major league career, and only beaten by his 6.8 BB/9 pitching in the minor leagues in 1986, however his 7 K/9 was also the second highest of his major league career. In his first start following the All-Star Game, Hentgen threw a complete game shutout against the
Kansas City Royals. Hentgen was key for the Jays playoff push, throwing over 6 innings in every start he made between the All-Star Break and the end of September, including throwing over 7 innings in each start he made in August. He also threw at least 100 pitches in all but two games during this stretch. He threw his third complete game of the year on August 8, another loss to the
Milwaukee Brewers. His final start of the season was a poor one on October 2, allowing 8 runs in 4 innings against the
Baltimore Orioles, however half of those runs were unearned due to two errors from shortstop
Dick Schofield and one from Hentgen himself. Hentgen made two starts in the
1993 playoffs, after which he only made one more with the Cardinals in 2000. In Game 3 of the
ALCS against the White Sox, he allowed 6 runs in 3 innings, giving the White Sox their first win of the series. The Sox would tie the series after winning Game 4 as well, but the Jays would end up taking it 4-2. In the
World Series, Hentgen again started Game 3, this time allowing just one run in 6 strong innings. The Jays won the game 10-3 to take a 2-1 series lead, and would go on to win it in 6 games. Hentgen finished the 1993 season having pitched in 34 games (32 starts) throwing 216.1 innings, the third highest tally of his career. This season showed off Hentgen's capacity to pitch high amounts of innings for the first time, as he went at least 6 innings in 26 starts and threw at least 100 pitches in 22. He won 19 games, the second most of his career, and recorded a 3.87 ERA with 122 strikeouts. Hentgen finished 6th in Cy Young voting, just behind teammate
Duane Ward and ahead of teammate
Juan Guzman.
1996-1999 In 1996, Hentgen went 8–6 before the All-Star break and then went 12–4 after the All-Star break. He won back-to-back AL pitcher of the month awards in July and August. Hentgen finished the season with a 20–10 win–loss record and a 3.22 ERA, ranking second in the AL in wins and ERA. He led the league with 265.2 innings pitched, 10 complete games, and 3 shutouts. For his efforts, he won the AL Cy Young Award, the first in Blue Jays franchise history. He spent the 2000 season with the Cardinals, going 15–12 with a 4.72 ERA. He went 0–4 with a 7.77 ERA in 2002 and 7–8 with a 4.09 ERA in 2003. Hentgen finished his MLB career with a 131–112 record, a 4.32 ERA, and 1,290 strikeouts in 2,075.1 innings pitched. ==Post-playing career==