There are a number of unanswerable questions in baseball history, but none truly tantalizes like the question of which pitcher was the fastest of all time. So this week, on the 78th anniversary of Bob Feller setting a new record for recorded pitch speed AND the 50th anniversary of Nolan Ryan doing the same, Mike and Bill break a record of their own, turning in their longest episode yet, looking back at the various attempts to figure out exactly who was the fastest before we had radar guns to spoil all the fun. And they even rope in Sports Reference guru Adam Darowski (@baseballtwit) to help them.

Plus, happy birthday to Wild Bill Hallahan and Max Lanier!