Bartolo Colon was flawless for much of the afternoon on Wednesday. Jeurys Familia and Jenrry Mejia have both been nearly as flawless for about the last month.

The much-improved back end of the Mets bullpen got the last five outs in Wednesday’s win.

Familia benefited from a replay review on Willie Bloomquist's grounder to short to get through the eighth. Mejia skated through a ninth inning that got a tad dicey, but earned another save.

Familia has allowed one earned run in 19 1/3 innings over 19 games dating back to June 12. He has three holds and a win over a stretch of seven straight scoreless appearances.

Mejia has allowed one earned run over 13 innings with six saves in seven chances in a 12-game span dating back to June 21. Three of his last four save conversions have come in one-run wins.

Jeurys Familia- 2014 Season

What has been the biggest key for each of them?

Familia’s miss-rate and hard-hit contact rate don’t necessarily suggest that he’s pitching better. But the results have been good.

One thing Familia has done a better job of is keeping the ball down, resulting in more groundballs. And of the last 37 hitters to hit a groundball against Familia, the Mets have gotten at least one out on 30 of them.

Mejia is succeeding on the strength of a nasty breaking ball, one he struck James Jones and Logan Morrison out in the ninth inning on Wednesday.

In this dozen-appearance run, Mejia has thrown 21 two-strike curves and sliders. They’ve resulted in 12 outs, 11 of which were strikeouts, and no baserunners.

That’s in contrast to the first 31 breaking balls Mejia threw as a reliever, which netted five strikeouts, but also three hits, including a double and home run.

This run of Mejia's success coincided with an overall run of bullpen success. Since June 12, the Mets bullpen has a 2.40 ERA, third-best in the major leagues.