A couple of exceptional fields await Oregon in the regular season finale, where the Ducks will bid farewell to 19 seniors Friday at the Twilight Meet.
Semifinalists will be announced May 28
Oregon returns to Pac-12 play after two games at Seattle U.
Mitchell Tolman drove in two more runs on Wednesday against Seattle but it wasn't enough for No. 11 Oregon in a 3-2 non-conference loss at Bannerwood Park.
The All-America senior logged nine strikeouts in her five innings as No. 4 Oregon (42-7, 15-3) capped its doubleheader sweep of Seattle (20-30, 8-10) Wednesday.