Last Updated: June 17th, 2026 by Michael Schatz
From perfect games to record-breaking strikeout tallies, there’s no shortage of amazing feats on the mound. The most dominant pitching seasons in MLB history showcase incredible skill, control, and the ability to shut down even the best hitters. Let’s take a look at the 10 best to ever do it…
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1) Bob Gibson 1968
Bob Gibson’s 1968 season was legendary with a 1.12 ERA, the lowest since the Deadball Era. He struck out 268 batters, threw 13 shutouts, and completed 28 games. His record-setting 17 strikeouts in Game 1 of the World Series remains unmatched.
2) Pedro Martinez 1999
Pedro Martinez’s 1999 season was phenomenal with 313 strikeouts and a 2.07 ERA. He won the pitching Triple Crown and Cy Young Award unanimously.
3) Sandy Koufax 1965
Sandy Koufax’s 1965 season featured a perfect game and a pitching Triple Crown with 26 wins, a 2.04 ERA, and 382 strikeouts. His dominance earned him the nickname “The Left Arm of God.”
4) Greg Maddux 1995
Greg Maddux’s 1995 season was a pitching clinic, with a 1.63 ERA and 19 wins. He struck out 181 batters, walking only 23, and led the Braves to a World Series win.
5) Randy Johnson 2001
Randy Johnson’s 2001 season was terrifying for batters, with a 21-6 record and 2.49 ERA. He led the league with 372 strikeouts and helped the Diamondbacks win the World Series.
6) Clayton Kershaw 2014
Clayton Kershaw’s 2014 season was a masterclass, winning both the NL Cy Young Award and MVP. He posted a 1.77 ERA with 239 strikeouts, baffling batters with his curveball.
7) Tom Seaver 1971
Tom Seaver’s 1971 season was outstanding with 289 strikeouts and a 1.76 ERA. Despite coming second for the Cy Young Award, he earned the nickname “Tom Terrific.”
8) Roger Clemens 1986
Roger Clemens’ 1986 breakout year included 24 wins and 238 strikeouts. A highlight was his record-setting 20 strikeouts against the Seattle Mariners.
9) Dwight Gooden 1985
Dwight “Doc” Gooden’s 1985 season was electric, with a 1.53 ERA, 268 strikeouts, and 24 wins. His performance was dubbed the “house call” season for its brilliance.
10) Nolan Ryan 1973
Nolan Ryan’s 1973 season included two no-hitters and a league-leading 383 strikeouts. His electric performances thrilled baseball fans.