Yankee freshman Atley Donald, who will win 12 straight games to set an AL record for the most consecutive victories thrown by a rookie, throws a recorded pitch at 139 feet per second (94.7 mph) to establish a new record for a fastball. The velocity of ‘Swampy’s’ throw was measured by a speed meter owned by the Indians and the Cleveland Plain Dealer.

This Day In Baseball

On August 30, 1939 — New Tork Yankee Rookie Atley Donald, who will win 12 straight games to set an AL record for the most consecutive victories thrown by a rookie, throws a recorded pitch at 139 feet per second (94.7 mph) to establish a new record for a fastball. The velocity of ‘Swampy’s’ throw was measured by a speed meter owned by the Indians and the Cleveland Plain Dealer.