Plainedge defeated South Side, 4-3, in a Nassau baseball game Monday.

Credit: James Escher

Plainedge teammates celebrate after their 4-3 walkoff victory over South Side in a Nassau baseball game against South Side at Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

Plainedge teammates celebrate after their 4-3 walkoff victory over South Side in a Nassau baseball game against South Side at Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

Plainedge leftfielder Nolan Matthews delivers the game-winning hit to break a 3-3 tie with two outs in the bottom of the seventh inning of a Nassau baseball game against South Side at Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

Plainedge designated hitter Richie Whalen hits a sharp grounder that ricocheted off the third base bag and plated two runs with two outs in the bottom of the seventh inning of a Nassau baseball game against South Side at Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

South Side third baseman Tom Mormando hits a double in the top of the second inning of a Nassau baseball game against host Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

South Side pitcher Andrew Misiaszek delivers to the plate in the bottom of the fourth inning of a Nassau baseball game against host Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

South Side third baseman Tom Mormando, left, slides safely into second base as Plainedge shortstop Jimmy Mendyk tries to tag him during a Nassau baseball game at Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

South Side pitcher Andrew Misiaszek delivers to the plate in the bottom of the third inning of a Nassau baseball game against host Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

Plainedge second baseman Vinny Biordi throws to first base to complete a double play in the top of the first inning of a Nassau baseball game against South Side at Plainedge High School on Monday, April 27, 2015.

Credit: James Escher

Plainedge pitcher Pat Reilly delivers to the plate in the top of the first inning of a Nassau baseball game against South Side at Plainedge High School on Monday, April 27, 2015.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Gilgo Killer's life in jail ... How about those Knicks? ... HS plays of the week ... What's up on LI ... Get the latest news and more great videos at NewsdayTV

SUBSCRIBE

Unlimited Digital AccessOnly 25¢for 6 months

ACT NOWSALE ENDS SOON | CANCEL ANYTIME