During the regular 1974 Philadelphia Phillies season managed by Paul Owens, Schmidt hit a home run on June tenth when the ball hit the speaker. which would have travelled 500 or more feet according to experts.
On June 10, Schmidt hit what many felt should have been a home run when the ball hit the public address speaker that hung 117 feet above and 329 feet away from home plate at the Astrodome in Houston. 
