Okoroba was fouled on his second layup in less than a minute after the Pirates (4-10, 2-0 Mid-Eastern Athletic Conference) had trailed 49-44 with 2:29 remaining.
Powers' free throw with 27 seconds left made it 51-49, but he missed his second try. After a missed shot by the Bison (4-13, 1-2), Du'Vaughn Maxwell couldn't put the game away, missing two free throws.
A steal by Powers with 4 seconds left denied Howard a final chance to tie or win.
Howard already had squandered plenty of chances, however, making just 9 of its 21 free throws. Hampton, which earned its first road victory this season, made 18 of 27.
Maryland point guard Melo Trimble has withdrawn from the NBA draft and will return to College Park for his junior season, sources told ESPN.
Louisville's Chinanu Onuaku, who recently underwent a medical procedure to correct a heart rhythm issue detected during the combine, will keep his name in the NBA draft pool.
Andrew White III will return to the Nebraska men's basketball team next season after removing his name from the NBA draft.
|South Carolina State||12-4||1||19-15|
|North Carolina Central||7-9||6||13-19|
|North Carolina A&T||7-9||6||10-22|