Oregon battled back down 3-1 to defeat No. 47 Washington 4-3 on Friday behind wins from singles No. 1-3.
Oregon's first year under Alison Silverio has featured steady gains, which have the Ducks in contention for some major accolades this week.
Oregon will enter a pair of crucial matches this weekend against No. 47 Washington on the road and Idaho at home.
Marlou Kluiving came through in the clutch for Oregon, clinching the upset over No. 45 Arizona with a 7-5, 6-0 win at No. 4 singles.
Nia Rose picked up her third win against a ranked opponent in as many weeks on Friday in the 4-2 loss to No. 24 Arizona State.
Oregon returns home this weekend with a pair matches against the Arizona schools this Friday and Sunday.
Nia Rose continues to slay the giants in singles play, this time at the expense of No. 22 Klara Fabikova.
Oregon couldn't stop No. 10 Stanford on Friday, losing a 6-1 battle on the road.
Pac-12 play continues for Oregon this as they hit the road to take on the Bay Area teams on Friday and Saturday.
The Ducks gave the fourth-ranked UCLA Bruins all they had, but just couldn't quite pull off the upset and fell 5-2
The Ducks gave No. 1 USC a run for their money, but eventually fell 6-1 on Friday at the UO Outdoor Tennis Courts.
Oregon will be tested this weekend when they host a pair of top-ranked teams in No. 1 USC and No. 4 UCLA.