When the Mets play well in the second half they generally make the playoffs.
The Mets have reached the postseason nine times, never producing worse than a .588 winning percentage after the All-Star break in any of those years. Nine of their best 11 second halves led to the postseason. One of the two that failed, the 1985 Mets, actually had the NL’s second-best overall record, but in a wild card-less era didn’t win the East.
The Mets have never climbed above a .700 second-half winning percentage, the high of .671 coming 50 years ago, the sainted 1969 squad.