MLB'S MOST STRIKEOUTS
IN A SEASON
THE LONGEST LIST OF THE LONGEST STUFF AT THE LONGEST DOMAIN NAME AT LONG LAST

Who has the most strikeouts in a MLB season?

Way back in 1886, as far as strikeouts go, Matthew Kilroy of the Baltimore Orioles had a season yet to surpassed.

During the 1886 regular season Matthew Kilroy struck out a whopping 513 batters.