Junior Chris Castellanos pitched seven strong innings, and junior Alex Dunlap supplied a two-run home run to lead Stanford baseball to a 4-1 Pac-12 Conference win at UCLA on Thursday night.
The Cardinal (16-8, 5-2 Pac-12) won its fourth straight.
Tuesday night's home run hero, Jonny Locher, singled home Diekroeger, who was on base for the 11th time in his last 16 plate appearances, to give Stanford a 3-0 lead after the top of the fourth.
UCLA got its first base runner and run against Castellanos in the bottom of the inning to get within two.
Stanford got that tally back in the top of the seventh. Junior shortstop Tommy Edman brought home Dunlap with a sacrifice fly to left.
It was a homecoming for Castellanos, a Long Beach native who had a large cheering section at Jackie Robinson Stadium.
He did not disappoint as he matched a career best with seven innings, and allowed just one earned run. He surrendered just five hits, did not walk a batter, and struck out three.
Castellanos pitched into the eighth inning, but was relieved with two runners on and the tying run at the plate. Junior Tyler Thorne stranded left the bases loaded to maintain Stanford's three-run lead.
Sophomore Colton Hock retired all three Bruins he faced in the ninth to earn his third save of the year.
The three-game set continues Friday (7pm) and Saturday (4:30pm). Both games can be seen on the Pac-12 Network.