Jeff McNeil’s mind swung into action even before his bat.
McNeill, a 26-year-old rookie, went 4 for 4 and hit a go-ahead double with two outs in the eighth inning on Tuesday night that helped the host Mets beat the San Francisco Giants, 6-3.
McNeil became the first Mets player with two four-hit performances in his first 27 games.
McNeil singled in his first three at-bats, then gave the Mets a 3-2 lead by lining a first-pitch fastball from the left-hander Tony Watson (4-5) down the left-field line.
“I was kind of looking out over the plate,” McNeil said. “I faced him yesterday and he threw me three sliders, so I’ve seen that pitch — I got a hit off it yesterday. So yeah, I was kind of expecting a fastball there, and I got it.”
McNeil is hitting .326 since making his major league debut this season.
With the score tied at 2-2, Jose Reyes led off the Mets’ eighth with a triple off the center-field fence. Watson got pinch-hitter Todd Frazier on a popout and struck out Amed Rosario before McNeil delivered.
Michael Conforto hit a three-run homer after the Giants intentionally walked Wilmer Flores. Conforto finished with four R.B.I.
Evan Longoria hit a two-run homer for the Giants, who fell to 3-5 on an 11-game trip. Longoria’s drive was San Francisco’s first homer since Andrew McCutchen connected last Wednesday.
The Giants, who dropped to 62-65, are behind several teams for the second National League wild-card spot. They may also lose the star catcher Buster Posey to season-ending hip surgery, though no decision has been made yet.
“Truth of the matter is we have talked to him about it,” Manager Bruce Bochy said. “So, we’ll continue to discuss it.”
Corey Oswalt (3-2) pitched three scoreless innings to earn the win. Seth Lugo worked the ninth, giving up a run when Austin Slater hit an R.B.I. single off right fielder Jose Bautista’s glove.
McNeil scored the Mets’ first run, on a sacrifice fly by Conforto.
Steven Matz allowed two runs and five hits in five innings in his second start for the Mets since returning from a strained left forearm.