The Grand Slam Single was a baseball play that ended Game 5 of the 1999 National League Championship Series, contested between the rival New York Mets and Atlanta Braves, on October 17, 1999, at Shea Stadium in New York City. Mets player Robin Ventura recorded a game-winning hit, and although it cleared the outfield fences and normally would have been ruled a grand slam, he never completed his trip around the bases due to the on-field celebration; thus, it was only credited as a single.