Donohoe and Williams lead the offense.
Bruins claim both the men and women's team titles
Fourth-ranked Bruins to face No. 17 Florida on Sunday at 10:00 a.m. (EST) in Georgia.
Alleyne scored the last 10 points for Oregon and finished with 30 points and 25 rebounds.
Sophomore Annika Lenz won twice on Saturday, while junior Allison Wine also posted a victory.