Two years ago, I wrote an article for another website, entitled "Weird, Wild Walk-offs." For those curious (perhaps after seeing Mike Stanton's walk-off balk in Friday's Nationals-Brewers game) about walk-off steals of home, walk-off rules violations, and the unfortunate case of the walk-off "lookout," I encourage you to click on the link. True Metsopotamians know... The Mets have never won a game via a walk-off balk, passed ball, or catchers interference. They have won one game apiece via the walk-off hit by pitch , walk-off triple, and walk-off steal of home (we'll document the latter two in the near-future). The most common type of Mets walk-off win is via the single. The current tally is 137 walk-off singles, with three others in which the Mets won via a single/error combination.
A blog devoted to cataloguing New York Mets walk-offs and other trivia. For those unaware of the definition of walk-off just replace the term with the words "game-ending" and you should have a much better understanding of the phrase.