By comparison, 7,006 out of 9,018 qualified pitchers in AL/NL history have won 10 games. There have been 812 20-win seasons, 126 25-win seasons, and 21 30-win seasons. The record for wins in a season is 41, set by
Jack Chesbro of the New York Highlanders in 1904. That’s probably the most unbreakable major record in the book. (At least for a starting pitcher. Put me in charge of the Dodgers and give me permission to run
Ben Casparius into the ground, and
I bet we could make a run at 40-plus wins out of the pen.)