CLEVELAND -- Demetrius Treadwell scored 19 points and pulled down 11 rebounds to lead No. 4 seed Akron to an 83-77 quarterfinal-round victory over fifth-seeded Ohio in the Mid-American Conference tournament Thursday.

Akron faces No. 1 seed Western Michigan in the semifinal round Friday. This is the 9th straight year the Zips have reached the semifinals.

Quincy Diggs led Akron (21-11) with 20 points and Reggie McAdams added 10.

Ohio (23-11) held a 38-33 halftime advantage and led throughout most of the second period. Diggs made a layup with 5:48 remaining to the tie score at 64. Nick Kellogg, who led Ohio with 25 points, hit a 3-point jumper to retake the lead but Nick Harney followed with a free throw and Treadwell made a layup to tie the score at 67. Treadwell made a free throw and Diggs made a three-point play for a 71-67 lead with 2:58 remaining.