In other nonleague action, Rancocas Valley trailed by a goal early before winning decisively, 7-2, at Holy Cross.
Fati King, Dominic Palmucci, and Silas Wood each had two goals. Alek Tsamutalos added one.
It was the fourth game in a row in which King scored.
Holy Cross stayed undefeated with a 3-0 win at Rancocas Valley in a Burlington County League game.
Sophomore Caroline Casey scored both her goals off set pieces: a penalty shot and a free kick from 25 yards that she put in the upper left corner of the net.
"She's a very cool, calm, and collected player," Holy Cross coach Sergio Torres said.
Junior forward and captain Carolyn Eckerle also scored, off a cross from Julieann Gee.
Nonleague. Washington Township hosted a double-overtime 0-0 tie against Williamstown. Township goalie Jessica McKee had seven saves and Williamstown's Taylor Bynoe had nine in the defensive battle.
Gateway gave the home fans a game to remember, roaring back from a three-goal deficit in the second half to defeat Riverside, 4-3, in overtime.
Alex Astorga scored with two minutes left in the nonleague game to force the extra session. Then Nicole Dybus scored her second goal of the game off a corner to win it for the Gators.
Sasha Chang, Nicole DiMiero, and Allie Jenkins scored for Riverside.
In other nonleague action:
Haddon Heights stayed unbeaten with a 3-0 win against visiting Triton. Jordan Paradise, Jacqui Rosati, and Emma Sheehan scored.
Jackie Neary powered Kingsway to a 6-0 victory at home over Haddonfield. She scored three goals and had two assists.
Danni Hall scored twice, and Marissa Ciocco had one goal.
Contact Benjamin Grant at firstname.lastname@example.org.