Nebraska-Omaha (7-16, 4-6 Summit) trailed by 11 points at halftime, but outscored UMKC 37-18 in the second half.
Nebraska-Omaha was 13 of 26 from the field in the second half and converted 9 of 10 free-throw attempts. Meanwhile, UMKC (6-16, 3-6) hit made just 7 of 24 shots from the field after intermission.
C.J. Carters scored 11 points to help the Nebraska-Omaha cause.
UMKC had a 38-30 rebounding advantage and 19-5 edge in bench points, but couldn't convert those into a victory.
Guard Naz Mitrou-Long, whose 2015-16 season ended in December due to hip problems, has been granted a hardship waiver for the coming season, Iowa State said.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.
The Central Intercollegiate Athletic Association says it won't move its headquarters, its basketball tournament or other conference championships from North Carolina, despite