Max Scherzer had 13 strikeouts against the Los Angeles Dodgers on Saturday.
Scherzer recorded his 100th strikeout of the season in his 63rd inning.
He's the fastest to reach the mark since Kerry Wood needed just 65 2/3 innings in 2001.
Scherzer, 33, has a 1.78 ERA, 0.85 WHIP and 104 strikeouts on the season.