June 18

From The Met Wiki

1967: The Mets split a doubleheader with the Cubs, each game ending in a 4-3 score. In the opener, Tommie Reynolds homers in the 10th inning for a Mets win.

1972: Tom Seaver hits a home run in the seventh inning to give himself and the Mets a 2-1 win at Cincinnati.

2008: Damion Easley's home run in the 10th inning gives the Mets a 5-4 victory over the Angels in Anaheim. The win is the first for Jerry Manuel as the team's manager.

2010: Five Mets pitchers combine for a shutout in a 4-0 win over the Yankees.