Marreon Jackson had five 3-pointers and finished with 15 points for the Rockets (14-6, 6-1 Mid-American Conference), who have won a season-best six straight.
Thomas Wilder scored a career-high 40 points for Western Michigan (11-9, 3-4), which has lost four of its last five games.
A 5-0 spurt pulled the Broncos to 81-80 with 22 seconds left. Sanford made two from the line to stretch the Rockets' lead to 83-80 with 11 seconds to go. Wilder made a free throw and then intentionally missed the second attempt. The ball went out of bounds and Western Michigan kept possession with seven seconds left, but Sanford blocked Wilder's layup attempt and made two free throws to seal it.
Top recruits are starting to take their official visits, meaning it's time to make some predictions about where they're leaning.
The cream of the crop of American high school basketball will congregate in Colorado Springs from Oct. 5-7, as USA Basketball unveils its newly expanded Junior National Team minicamp in collaboration with the NBA, NCAA and NBPA.
Missouri guard Cullen VanLeer is retiring from basketball after tearing his ACL in the Tigers' final regular-season game last season.