Tianna LaRosa hit a walk-off single to give East Meadow a 5-4 win over Oceanside in Game 1 of the Nassau Class AA finals on Monday.

Credit: James Escher

East Meadow teammates mob No. 11 Tianna LaRosa after she delivered a walk-off single against Oceanside in Game 1 of the Nassau County Class AA finals at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow pitcher No. 26 Kerri Shapiro delivers to the plate during the top of the first inning in Game 1 of the Nassau County Class AA finals against Oceanside at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow pitcher No. 26 Kerri Shapiro delivers a game-tying triple with no outs in the bottom of the seventh inning in Game 1 of the Nassau County Class AA finals against Oceanside at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

Oceanside shortstop No. 6 Claire McNamara hits a two-run single with two outs in the top of the second inning in Game 1 of the Nassau County Class AA finals against East Meadow at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

Oceanside pitcher No. 24 Elizabeth Campo delivers to the plate in the bottom of the first inning in Game 1 of the Nassau County Class AA finals against East Meadow at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow first baseman No. 7 Jessica Laird, left, and teammates mob rightfielder No. 11 Tianna LaRosa after she delivered an RBI single for the walk-off win over Oceanside in Game 1 of the Nassau CountybClass AA finals at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow rightfielder No. 11 Tianna LaRosa delivers an RBI single for the walk-off win over Oceanside in Game 1 of the Nassau County Class AA finals at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow shortstop No. 18 Claire Travis reacts after scoring on a triple by Kerri Shapiro (not pictured) to tie Oceanside at 4-4 with in the bottom of the seventh inning in Game 1 of the Nassau County Class AA finals at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow pitcher No. 26 Kerri Shapiro hits an RBI single in bottom of the third inning in Game 1 of the Nassau County Class AA finals against Oceanside at Mitchel Athletic Complex on May 19, 2014.

Credit: James Escher

East Meadow rightfielder No. 11 Tianna LaRosa rounds first base after delivering an RBI single for the walk-off win over Oceanside in Game 1 of the Nassau County Class AA finals at Mitchel Athletic Complex on May 19, 2014.

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