Peter O’Brien finishes 2nd in Triple-A home run derby

Peter O'Brien goes deep in Monday's Triple-A Home Run Derby.

Diamondbacks’ farmhand Peter O’Brien’s already legendary power wowed the crowd in Monday night’s Triple-A Home Run Derby in Omaha, Neb., but it wasn’t enough to bring home the grand prize.

O’Brien, an outfielder for the Reno Aces, hit 13 home runs in the first round of the competition — the most prolific display of the night — but he had just seven in the next two rounds and finished second to Orioles’ prospect Dariel Alvarez, an outfielder for Norfolk.

Alvarez hit six home runs in the final round to finish with 21 on the night. O’Brien hit five in the final round but came up short on his final four swings.

Jamie Romak, O’Brien’s teammate at Reno, finished third. He belted three homers in the first round and 10 in the second.

The competition also included Indians minor-leaguer Jesus Aguilar, White Sox minor-leaguer Matt Davidson and Padres minor-leaguer Cody Decker in addition to a pair of high school sluggers from the Nebraska area: Alex Bohm and Jack Kalina.