Blumenherst shot a 5-under 66 Friday to take a share of the tournament lead, while Freiman will look to solidify his spot in the A's lineup when he bats fifth Saturday against the White Sox.
Blumenherst, who was scheduled to tee off Saturday around the same time the A's took batting practice, is seeking her first career LPGA Tour title.
"The time change is killing me because they're out in Oakland," said Blumenherst, who's registered six top-10 finishes in 81 professional tournaments.
While the time disparity with Freiman playing in Oakland has proved challenging -- pushing her bedtime back to 1:30 a.m. so she can watch her husband play via her computer -- Blumenherst said she's appreciative of their unique situation.
"I have to pinch myself sometimes," Blumenherst said. "He's just so excited and so happy, and he's worked so hard throughout all the Minors, and to finally have us both be at the majors of our sport and just really enjoying it and being able to support each other."
Jeff Kirshman is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.