Left-hander Alex Wood combined with three relievers on a four-hit shutout and the San Francisco Giants used small ball to produce the only run in a 1-0 victory over the visiting Arizona Diamondbacks on Wednesday night.

The Giants (104-54) improved to 50 games over .500 and maintained their two-game lead over the second-place Dodgers in the National League West. Los Angeles (102-56) rallied for an 11-9 win over the visiting San Diego Padres shortly after the San Francisco game ended.

Wood limited the Diamondbacks (50-108) to three hits in six innings without issuing a walk. He struck out six.

After using double plays to erase two early threats, Wood's biggest jam came in the fifth with the game still scoreless. An error by third baseman Evan Longoria and a two-out infield single by Geraldo Perdomo put two runners on, but Wood struck out opposing pitcher Merrill Kelly.

Wood then worked around a second Giants error in the sixth before calling it a night.

Dominic Leone (4-5), Jarlin Garcia and Camilo Doval took it from there, combining for four strikeouts and just one hit allowed over the final three innings. Doval was credited with his second save, both in the past two nights, after retiring the side in order in the ninth.

The Giants scraped together their only run off the Diamondbacks' third pitcher, Noe Ramirez (0-2), after Tommy La Stella led off the seventh with a single.

Pinch runner Steven Duggar stole second, advanced to third on a LaMonte Wade Jr. sacrifice bunt and sprinted home on a Kris Bryant sacrifice fly to right field.

Kelly allowed three hits and four walks in his five innings but kept the game scoreless. He struck out four.

Buster Posey reached base on all four plate appearances with two singles and two walks for the Giants, who improved to 16-2 against the Diamondbacks this season.

Perdomo had two of Arizona's four hits in a game that did not feature an extra-base hit.

--Field Level Media