WEST COVINA (CBSLA.com) In 2009, Bryce Harper, at 19, hit a bomb that measured just over 500 feet, and four years later, West Covina’s David Denson broke that remarkable mark with a lucrative 515-foot home run at Marlins Park in Florida.

17-year-old Denson, who attends South Hills in West Covina, hit his world-record home run at Power Showcase Home Run Derby, where he hit 19 total bombs to win the 7^th annual event.

The world-record ball was hit so hard and so high, the camera men had a tough time following the ball.

The 6-foot-4 senior, who can also throw 90 mph, has committed to play college baseball at the University of Hawaii.

Bats used in the Power Showcase Derby are all metal.

(©2013 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)