Junior Taylor Will scored 6 points and classmate Catherine Sherwood had 2 in the second overtime for Prospect, which outscored Barrington 8-2 in the second extra period for a 51-45 victory in the second-place Mid-Suburban League girls basketball crossover Tuesday.
Will (game-high 21 points) also had the big 3-pointer with 14 seconds left to tie the game at 37-37 in regulation.
"We drew up something for Taylor and she hit the 3-pointer," said Prospect coach Ashley Graham, whose team ended the regular season at 22-5. "The great players hit those shots and Taylor obviously had the pride and confidence in herself to shoot it.
"Then we made a big defensive stop after that to get the game to overtime."
The Knights were without Mallory Gonzalez and Haley Will (fouled out) in OT.
"Playing without two starters, I thought kids off the bench (Nikki Matters, Hannah Grott Brenda Kendziera) did a great job. "They got quality minutes and obviously their hard their hard work in practice paid off. It was a great win against great team going into the regional."
Sherwood finished with 19 points and Gonzalez had 9 for the Knights, who trailed 12-5 after one quarter and 17-16 at half.
"We never hung our heads, whether we had the lead or not," Graham said.
Kelly Katis led Barrington (19-8) with 12 points while Bailee McDonald and Megan Talbot each had 8. Brooke Gunderson added 7.
Talbot also had 15 rebounds.
"I thought Kelly Katis probably played her best game of season," said Fillies coach Babbi Barreiro. "She did a real good job taking control and leading the team in key situations.
"Bailee McDonald (5 rebounds) did some nice things and Carrie Madden did a nice job defending Taylor Will, who is a very good player."
Barreiro credited the Knights, too.
"Prospect is obviously a very good team and has had a real nice season," she said. "I feel we had opportunities to put the game away in regulation and overtime. We missed some free throws down the stretch and I think we had a lack of defensive intensity at crucial times."
Barreiro hopes the game will pay off in the postseason.
"Hopefully the kids understand they can play and compete against a good team like this," she said. "But we've got to be able to finish.
"It's a disappointing and hard loss but it just prepares us that much more for the big games coming up."
Buffalo Grove 56, Schaumburg 46: Sophomore Maddie Welter scored a game-high 20 points with 4 rebounds and 3 steals for the visiting Bison (11-16).
Classmate Sammy Stejskal added 11 points while senior Kim Herzog and junior Madeline Callahan (7 rebounds) each added 8.
Julie Jambrone, Bri Kolbus and Courtney Meyer collected 4 rebounds apiece for the Bison.
Junio guard Brittany Reinhart led Schaumburg (7-19) with 15 points, 4 rebounds, 3 assists and 3 steals. Classmate Tatiana Doroskin added 11 points and 6 rebounds.
Wheeling 53, Hoffman Estates 38: Junior guard Deanna Kuzmanic, returning from an injury to her teeth, scored a game-high 20 points with four 3-pointers to lead the visiting Wildcats (12-15).
"It was her first game back and she played great," said Hoffman assistant coach Jay Colloton. "Wheeling just out-hustled us."
Elizabeth Smith and Hailey Dammeier each added 8 points for the winners while Hannah Dobrowski chipped in 7.
Erin Hanson (11 points) and Maya Bowens (10) led Hoffman (4-21).
Elk Grove 51, Palatine 41: Amber Lindfors (16 points), Melissa Solorio (15) and Taylor Brown (10) led the visiting Grenadiers (9-18).
Sammy Heuertz (18 points) and Morgan Radtke (11) were top scorers for Palatine (9-18).