Vaughn-Low's game winner was her second goal of the night. Valley scoring leader Kate Del Fava also had two goals and an assist for the Redbirds, who improved to 14-5 overall. Missouri State fell to 11-5-2.
"The win tonight was tremendous," said ISU coach Brad Silvey. "Being able to play in a championship-caliber game and find a way to get the win, regardless of how it comes, is obviously big-time for us. At the end of the day, our team effort and and willingness to battle, even when our backs were up against the wall is special."
The Redbirds had taken a 3-1 lead before Missouri State grabbed the momentum with a goal in both the 72nd and 80th minute of the game to force the extra session.