In the modern era of Major League Baseball, there have been 38 seasons by a pitcher to reach 300 strikeouts. There have been nineteen pitchers to reach the mark in a year since 1900. This is a complete history of these seasons.
Terms to know:
-GP: Games Pitched
-IP: Innings pitched
-W/L: Pitching Wins/Losses
-ERA: Earned run average: number of runs given up by the pitcher per 9 innings that were not a result of error or passed ball
-SO/K: Strikeouts
-SV: Saves: Games finished by a relief pitcher, under certain circumstances (close enough game, late enough)
-ERA+: Adjusted ERA stat, park and era adjusted, where 100 is league average
-WHIP: Walks and hits per innings pitched: number of walks and hits allowed on average per inning
-FIP: Fielding independent pitching: similar to ERA, but excludes batted balls in the field of play. Uses strikeouts, walks, and home runs.
-WAR: Wins above replacement: player’s value relative to a replacement-level player at their position. fWAR is Fangraphs’ version of war, and rWAR and bWAR are Baseball-Reference’s