WMU defeated Ball State 195.825 - 195.675 on the Sunday afternoon Alumni meet at University Arena.
The Broncos posted a new season-high score whilst also giving Ball State its first conference loss of the season.
Makenna King and Brooke Gelesko posted scores of 9.800 on vault, tying for first place.
Three Broncos tied on bars for second place with a score of 9.750.
The Broncos boosted its score on beam, with Julie Korfhage having a near perfect score of 9.900. It was the first of her career and first for WMU this season.
The team had a season-best score on floor, with a team score of 49.