The Golden Bears scored three unearned runs in the bottom of the fourth when Garrett Bussiere hit Guilmet’s lone mistake of the game over the wall in the left for a three-run homer. The game-changing blast was set up by a two-out throwing error by Colt Sedbrook on a grounder by Josh Satin and a single Chris Errecart in the previous two at-bats.
Jon Gaston, who finished 2 for 4 in the game, pulled Arizona within one with a two-run homer in the seventh, but was doubled-up at second base on a liner by Brad Boyer in the ninth for a game-ending double play.
Reliever Jeremy Burchett recorded his second save of the year after working around consecutive one-out singles by Gaston and Konrad Schmidt in the ninth. Gaston, who broke for third on a 3-2 pitch to Boyer, couldn’t get back to second in time on the ensuing fly-out, allowing Errecart to throw behind him for the double play.
Guilmet (2-4) tied his career high with seven innings pitched in the losing effort on Thursday. The first-year right-hander surrendered seven hits, no earned runs, struck out five on walked only one in his first series-opening start.
Schmidt (2 for 4) and Brad Glenn (1 for 3) added doubles for