Kelly was 15 of 21 from the floor with three 3-pointers. Jon Elmore added 13 points for Marshall (4-7), which shot 48.4 percent overall and made 11 of 32 3-point attempts.
Wyoming (7-5) used a 13-2 run at the start of the second half, including 3-pointers by Adams and Alexander Aka Gorski, to take a 50-46 lead not three minutes in. Marshall responded with a 10-2 spurt to retake the lead. Wyoming got it to one several times, but it never regained the lead.
Marshall scored the last seven points of the first half and led 44-37 at the break.