TUCSON, Ariz. -- Beau Amaral went 2-for-5 with one double, two RBI and one run to lead the No. 11 UCLA past No. 10 Arizona 6-2 on Sunday afternoon.

UCLA (24-8, 10-5) moved into a three-way tie with Arizona (24-11, 10-5) and Oregon (24-10, 10-5) for first place in the Pac-12 standings, notching a crucial series victory on the road in conference action. The Bruins recorded their seventh consecutive series win over Arizona, handing the Wildcats their first series loss in nine weekends this season.

UCLA right-hander Zack Weiss (2-1) picked up the victory, limiting Arizona to two runs and five hits through six innings in his first start since March 11. Weiss finished with five strikeouts and two walks in his fifth start of the year.

Amaral extended his hitting streak to a career-high 18 games, finishing the weekend going 7-for-15 (.467) with two triples, one double and five runs scored.

Jeff Gelalich went 3-for-5 with one double, one RBI and one run. Tyler Heineman pushed his career-high hitting streak to 14 games, going 1-for-5 with one RBI.

Arizona right-hander James Farris (4-2) absorbed the loss, surrendering three runs and six hits in 4.2 innings.

UCLA limited Arizona to just two baserunners through the final four innings. Grant Watson, Ryan Deeter and Scott Griggs each threw one scoreless inning in relief of Weiss.

After being shut out through the first three innings, UCLA scored in each of the fourth through seventh frames to overcome a 2-1 deficit and assume a 6-2 cushion.

Arizona scored the game's first run in the bottom of the third to lead 1-0. UCLA answered with a run-scoring single by Trevor Brown in the top of the fourth, tying the contest at 1-1.

The Wildcats regained the lead with one run in the bottom of the fourth, before UCLA added two runs in the fifth, one in the sixth and two in the seventh.

UCLA's two-run fifth inning featured a run-scoring double by Amaral, tying the game at 2-2 and extending his career-high hitting streak to 18 games. Amaral advanced to third base on a wild pitch, and with the infield drawn in, Heineman smacked a run-scoring single through the left side to push UCLA ahead of Arizona, 3-2.

With two outs in the top of the sixth, Amaral lined a two-out RBI-single down the right field line, scoring Pat Valaika from second base and extending the Bruins' cushion to 4-2.

Cody Keefer opened the seventh inning with a single to left field and moved to second base on a wild pitch. Gelalich lined a double to center field, plating Keefer. Pinch-hitter Eric Filia-Snyder reached on an infield single to shortstop, and an errant throw to first base by Arizona's Alex Mejia allowed Gelalich to round third base and score.