Fourth-ranked Arizona swept a doubleheader with Grand Canyon on Wednesday evening, downing the Antelopes 6-2 and 13-0 (5 inn.) at Hillenbrand Stadium.
The Wildcats (34-1) are off to their best 35-game start since 2004.
Alyssa Palomino and Mandie Perez had two hits and two RBI apiece in the opener.
Danielle O'Toole (17-1) earned the victory in the complete-game effort, allowing two runs on seven hits with four strikeouts and two walks.
An eight-run second inning fueled a run-rule effort in the nightcap.
Katiyana Mauga hit her Pac-12-best 11th homer of the season and Hillary Edior hit her first career round-tripper, a pinch-hit solo shot in the fourth.
Mauga and Mo Mercado each had three RBI.
Taylor McQuillin (11-0) picked up the win, pitching four scoreless innings, allowing four hits with five strikeouts and no walks. Michelle Floyd pitched a scoreless fifth to end the game.
UA resumes Pac-12 play this weekend at Cal, meeting the Bears on Friday (4 p.m.), Saturday and Sunday in Berkeley.
All three games will be televised by the Pac-12 Networks.
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David Kelly contributed to this story.
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