Humberto Castellanos allowed two runs over five solid innings and earned his first win of the season Saturday night as the Arizona Diamondbacks beat the visiting New York Mets 5-2 in the middle game of a three-game series.

The Diamondbacks have won three of four. The Mets, who have yet to lose a series this season, lost for just the second time in seven games.

Castellanos (1-0) gave up four hits and one walk while striking out five. He retired nine in a row after walking leadoff batter Brandon Nimmo and didn't allow anyone beyond first base until the fifth.

Dominic Smith laced a leadoff double and scored on a one-out triple by Jeff McNeil, who scored when Tomas Nido legged out an infield RBI single. But Castellanos wriggled out of the jam by getting Nimmo to line into a double play.

Noe Ramirez, Kyle Nelson, Ian Kennedy and Joe Mantiply combined on four innings of three-hit relief, with Mantiply earning his first big league save by tossing a perfect ninth.

The Diamondbacks scored all the runs they'd need in the first two innings against Trevor Williams (0-2), who was pressed into the spot start due to the Mets' doubleheader against the San Francisco Giants on Tuesday.

Daulton Varsho led off the first with a single, went to third on David Peralta's one-out single and scored when Peralta was forced at second on Christian Walker's grounder.

Varsho's one-out RBI single was the last of four straight singles in the second by the Diamondbacks, who went ahead 3-0 when Sergio Alcantara scored on Ketel Marte's forceout.

Pavin Smith had an RBI double in the third and Peralta lofted a sacrifice fly in the sixth.

Varsho, Smith, Carson Kelly and Geraldo Perdomo all had two hits apiece for the Diamondbacks.

McNeil had two hits for the Mets.

Williams allowed four runs on seven hits with no walks or strikeouts in two innings.

--Field Level Media