Trailing 7-3, Buffalo Grove scored 7 runs in the bottom of the sixth inning en route to handing visiting Conant its first loss this softball season.
Junior ace Julia Camardo (8-4) won her third straight game since returning from an injury as the Bison (10-8, 6-3) won 10-9 and took a half-game lead over Elk Grove (19-3, 5-3) in the Mid-Suburban East.
Conant is now 12-1 and 6-1 in the MSL West, where the Cougars trail Schaumburg (14-4, 6-0) by a half game.
Conant hosts Fremd at 10 a.m. Saturday in a key MSL West game.
Katie Conley (2-for-3, 2 runs) and Michelle Dublin (2-for-4, 2 RBI) were multiple hitters for the Bison, who received a double from Cassie May.
Dream Aaron belted 2 homers for the Cougars and went 2-for-4 with 4 RBI and 3 runs. Other multiple hitters for the Cougars were Elissa Ambrose (3-for-4), Telly Hunter (3-for-4) and Hailey Rothstein (2-for-4, 1 run). DeeDee Durr also homered for Conant while Sara Neuman had a triple and Rachel O'Malley a double.
Camardo had 8 strikeouts for BG while Cougars pitcher Kim Zaucha (3-1) struck out one in 5⅓ innings.
Schaumburg 6, Marengo 5 (8 inn.): Paige Alt (6-1) earned the win for Schaumburg (14-4) and also went 2-for-4 with a single and a 3-run homer to tie the game in the bottom of the seventh with 2 outs.
Multiple hitters for Schaumburg were Shannon Felde (2-for-3, 2 doubles, RBI) and Roxanne Kakareka (2-for-3) while Sarah Schwind, Christina Candotti, Natalie Napier, Lindsay Leiber and Kaiden Jackson each had a hit.
The Saxons trailed 5-2 going into the bottom of the seventh and started the rally with a two-out single by Schwind followed by Felde's double.
Alt then belted the 3-run homer over the center field fence to tie the game.
"Our defense played strong and held them at 5 runs in the eight inning," said Saxons coach Ellen Abreu.
The Saxons won the game in the eighth when Natalie Napier led off with a single. Roxanne Kakareka followed with a single. With base runners on fist and second and outs, Lindsay Leiber put down a perfect bunt. An error on the throw to first allowed Napier to score the winning run.
Palatine 22, Whitney Young 3 (5 inn.): Top hitters for the Pirates (6-15) were Nora Walsh (3-for-4, 3 runs, double) Grace Rohrwasser (3-for-4, 3 runs), Jamie Haze (3-for-3, 5 RBI, triple), Courtney English (2-for-2, 3 runs), Emily Griffin (2-for-3, 2 runs), Victoria Parrot (2-for-4, 3 runs, 3 RBI, triple double), Dominique Boisvert (double), Shannon Surrell (triple) and Erin Davis (triple). Davis also picked up her second career win.
Glenbrook South 10, Rolling Meadows 5: Maddie Morgan belted her first career home run over the left-center field fence for the Mustangs in the quarterfinals of their own tournament.
Grace Skorin, Lauren Hattory (2-for-3, 2 doubles) and Chloe Prodanovic (3-for-4, RBI) each had doubles for the Meadows (4-15) while teammates Jenny Watson and Lane Winkler each went 2-for-4.