The Dragons remain at the top of the conference standings after defeating Ursuline 19-4 to improve to 4-1 in the league and 5-7 overall.
Rennie played 30 minutes in goal to earn the win, making seven saves on eight shots.
The freshman leads the league in goals against average (11.91) and save percentage (.511) with 96 total saves.
This marks back-to-back weekly honors for the Tiffin goalkeeper and the third time all season that she has earned the award.