- I remember when the Negro Leagues were added to MLB's official stat record, cool! But due to the short seasons there's some weirdness. Now, officially, the single-season ERA leader is Robert Keyes and his 0.64 ERA in 1944 over just 3 games. Bob Gibson is 10th. So... who's the single season ERA king? https://www.baseball-reference.com/leaders/earned_run_avg_season.shtml 31 comments baseball
- TIL: Cy Young had a single season ERA of 1.26... when he was 41 http://www.baseball-reference.com/leaders/earned_run_avg_season.shtml 10 comments baseball
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