Astros: Best individual seasons in club history – rotation

ST. LOUIS, MO - CIRCA 1987: Mike Scott #33 of the Houston Astros pitches against the St. Louis Cardinals during an Major League Baseball game circa 1987 at Busch Stadium in St. Louis, Missouri. Scott played for the Astros from 1983-91. (Photo by Focus on Sport/Getty Images)
ST. LOUIS, MO - CIRCA 1987: Mike Scott #33 of the Houston Astros pitches against the St. Louis Cardinals during an Major League Baseball game circa 1987 at Busch Stadium in St. Louis, Missouri. Scott played for the Astros from 1983-91. (Photo by Focus on Sport/Getty Images)
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HOUSTON, TX – OCTOBER 16: Dallas Keuchel #60 of the Houston Astros pitches in the first inning against the Boston Red Sox during Game Three of the American League Championship Series at Minute Maid Park on October 16, 2018 in Houston, Texas. (Photo by Bob Levey/Getty Images)
HOUSTON, TX – OCTOBER 16: Dallas Keuchel #60 of the Houston Astros pitches in the first inning against the Boston Red Sox during Game Three of the American League Championship Series at Minute Maid Park on October 16, 2018 in Houston, Texas. (Photo by Bob Levey/Getty Images)

10. Dallas Keuchel – 2015

Keuchel established himself as a major league starter in 2014 and then broke out in 2015 by winning the AL Cy Young award. He went 20-8 with a 2.48 ERA, striking out 216 batters in a league-leading 232 innings. He made his first All-Star team and won his second straight Gold Glove, totaling 6.5 WAR.

9. Gerrit Cole – 2019

You might be surprised to see Cole this low, but 6.6 WAR is an excellent season. There have just been eight better ones. Cole went 20-5 with a league-best 2.50 ERA, setting a franchise record with 326 strikeouts and finishing second in the Cy Young voting.

8. Mike Hampton – 1999

Hampton’s 22 wins still stand as the franchise record in a single season, and he led the league in winning percentage after suffering only four losses. He finished second in the Cy Young voting and won a Silver Slugger, tossing 239 innings of 2.90-ERA ball and hitting .311 at the plate, totaling 6.7 WAR.

7. Joe Niekro – 1982

Niekro had a couple of 20-win seasons with top-four Cy Young finishes with the Astros, but this wasn’t one of them. He did put up a career-best 2.47 ERA, though, to go with a 17-12 record in 270 innings over 35 starts. This performance was worth 6.8 WAR.

6. Andy Pettitte – 2005

Pettitte’s first season in Houston was cut short due to injury, but he rebounded with a 2.39 ERA in 33 starts, putting up a 17-9 record. He finished fifth in the Cy Young voting and helped the Astros reach their first World Series, compiling 6.8 WAR along the way.

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