Since 1990, 10 pitchers have thrown perfect games. The nine who aren't Matt Cain combined to throw 56 2/3 innings in their next starts, with a combined 57 hits allowed, 40 runs allowed, 35 earned runs allowed, 17 walks allowed. That's 8.2 baserunners per start, a 1.31 WHIP, and a 5.56 ERA.
Since 2000, 10 pitchers have allowed 18 or more baserunners in a game. One, Jimmy Anderson, never started again. The rest combined to throw 57 1/3 innings in their next starts, with a combined 48 hits allowed, 21 runs allowed, 19 earned runs allowed, and 17 walks allowed. That's 7.2 baserunners per start, a 1.13 WHIP, and a 2.98 ERA.
(Previously: In Bunches.)
Thank you for reading
This is a free article. If you enjoyed it, consider subscribing to Baseball Prospectus. Subscriptions support ongoing public baseball research and analysis in an increasingly proprietary environment.
Subscribe now
How do you even get to allow 18 baserunners in a game? Damn.
Whatcha been smoking?