Kelly was 13 of 19 from the field.
Kelly's 3-pointer with 2:08 put Marshall up by eight, 92-84. Rice scored the next six points to make it a two-point game, on Evans' layup with 13 seconds left.
Kelly made a layup on the next possession to seal it.
Marshall shot 55.7 percent (34 of 61) from the field, including 11 of 22 from 3-point range, and hit 15 of 19 free throw attempts.