Every pitcher with 300 strikeouts in a season is part of an elite club. Throughout the history of MLB, only 19 pitchers have accomplished the amazing feat of striking out 300 batters in a season. Most of the pitchers on this list are among the best pitchers in the history of the sport, and they were all — for either a season or their entire careers — among the top strikeout pitchers.
Pitchers like Randy Johnson and Sandy Koufax are synonymous with strikeouts, and of course, Nolan Ryan, who holds the record for most strikeouts by a pitcher in a season and a career, has six 300-strikeout seasons. Astros teammates Gerrit Cole and Justin Verlander joined the ranks in 2019 with career years and are among more recent pitchers such as Clayton Kershaw and Chris Sale to strike out 300 batters.
But which of these pitchers is the most fearsome strikeout pitcher in the club? Which of these 300-strikeout pitchers is among the best strikeout pitchers of all time? Vote up the top pitchers with 300 strikeout seasons, and check back to see who else might join the list in the future.