Courtney Stoelk buried a 3-pointer with five seconds left in regulation to send the game into overtime, but it was all Dubuque in the extra period, as the Spartans outscored BVU 15-5 en route to an 87-77 victory over the Beavers on Saturday afternoon.
In what was a wild game from start to finish, Buena Vista looked to be in control early on, building a 9-0 lead four minutes into the contest.
The Spartans, however, weren't about to get blown out and used a 20-10 run over the next 9:30 to pull in front by one at 20-19 with just less than six minutes left in the first half.
The game then had six ties and seven lead changes the rest of the period.
The second half proved to be much of the same with neither team leading by more than five the entire half.
Stoelk, who finished 5-of-9 from downtown, gave BVU a 68-65 lead with 1:50 left in regulation. The Spartans then sank four consecutive free-throws to pull in front by one at 69-68 with 53 ticks on the clock.
Margo Muhlbauer, who finished 3-of-4 at the charity stripe, went 1-of-2 at the line to even the score at 69-69 with 42 seconds left. A bucket, coupled with a BVU turnover and a 1-of-2 trip to the free-throw line, gave Dubuque a three-point lead (72-69) with nine seconds to play before Stoelk hit her long range shot, sending the game into overtime.
After Stoelk put BVU in front 77-76 with her final three of the game, Dubuque (10-8, 4-5 IIAC) closed things on an 11-0 run to secure its 10th win of the season.
Muhlbauer finished with a team-high 22 points, on 8-of-20 shooting to lead BVU, while Stoelk followed with 15.
Her five 3-point makes also move her into 12th place on the program's all-time career list with 70.
Jenn Schumann led Buena Vista with eight rebounds, as Muhlbauer hauled in seven.
UD's Jennifer Nichols turned in a game-high 26 points, including an 11-of-12 performance from the free-throw line, to go along with a team-high six rebounds. Dubuque finished the game shooting 52.8 percent from the field and 74.2 percent from the charity stripe.
Buena Vista evens its overall record at 9-9, while dipping to 3-6 in league play. The team now returns home on Wednesday night for a 6 p.m. tip-off with Luther.