Connell Studenmund assisted the goal on a cross and goalie Casey Cousineau needed to make just two saves in the shutout.
Crescenta Valley 10, Muir 0: The Falcons, who got two goals each from Mallory Carcich and Jessi Magallon, took care of business to set up a chance to share their fourth consecutive Pacific League title.
The Falcons (12-4-2, 10-1-2 in league) need a win on Thursday over Arcadia (11-0-2), which beat Burbank, 1-0, on Tuesday, to clinch a share of the league title.
Crescenta Valley 3, Muir 0: Alex Berger had a pair of assists, while Pavle Atanackovic, Rani Dimashki and Erick Trejo had goals in Tuesday's Pacific League road win.
The Falcons (15-0-6, 11-0-2) also got nine saves from Nick Ruiz.
Hoover 1, Pasadena 1: The Tornadoes improved to 2-7-4 in the Pacific League with Tuesday's tie.
Flintridge Prep 65, Pasadena Poly 43: Kareem Ismail scored a career-high 15 points and added 15 rebounds Tuesday to lead the visiting Rebels in a Prep League game. Kory Hamane added 12 points for Flintridge Prep (17-7, 8-0).
Pasadena 74, Hoover 49: Teo Davidian had a career-high 18 points and Kyle Bernardo added 14 in Hoover's Pacific League loss to Pasadena on Tuesday. The Tornadoes are now 8-18 and 2-11 in league.
Burroughs 68, Glendale 38: David Yetenikyan finished with 14 points Tuesday for the host Nitros in a Pacific league contest. Glendale dropped to 10-15, 5-8 in league.
Holy Family 40, San Gabriel Mission 32: The Gaels wrapped up second place in the Horizon League at the Pacific Community Center on Tuesday.
Holy Family, which enters next week's playoffs at 6-15 overall and 6-2 in league, was led by 11 points apiece from Elena Lomeli and Jennifer Rodriguez. Alex Mata added seven.
Muir 52, Crescenta Valley 28: The Falcons committed just seven turnovers and were even with the first-place Mustangs in rebounds, but shot just 17% from the field in Tuesday's Pacific League home defeat.
The Falcons, who are now 14-11 overall and 6-7 in league, look to defeat archrival Arcadia on Thursday and clinch fourth place in league and an automatic playoff entry, as they enter the game tied for fourth with Pasadena and Burroughs.