J.D. Davis lined a tiebreaking, two-run double in the sixth inning and the San Francisco Giants rode the big arm of Logan Webb to a 4-2 victory over the visiting Arizona Diamondbacks on Wednesday.

The Giants helped their National League wild-card position, winning for the fourth time in five games. The Diamondbacks lost for the third time in four games.

Webb (9-9) went seven innings and allowed only a pair of first-inning runs. He gave up four hits while striking out five and walking one as he lowered his ERA to 3.45.

Arizona's Jose Herrera walked to lead off the third inning, but he was erased on a double play, and Webb didn't allow another runner until Lourdes Gurriel Jr.'s one-out single in the seventh.

Diamondbacks reliever Tyler Gilbert (0-2) took the loss after yielding five hits and two runs in his lone inning.

Giants reliever Tyler Rogers pitched a scoreless eighth and Camilo Doval tossed a perfect ninth to pick up his 32nd save.

Arizona starting pitcher Slade Cecconi, a first-round pick in 2020, worked 4 2/3 innings in his big-league debut, allowing two runs on four hits. He walked one and fanned two.

Cecconi's first strikeout -- on the first batter he faced, LaMonte Wade Jr. -- came when replays showed a 3-2 pitch did not hit Wade and instead ricocheted off the knob of the bat directly into the lap of catcher Herrera.

The Diamondbacks opened the scoring in the first when Geraldo Perdomo singled, stole second base, went to third on a throwing error by Giants catcher Patrick Bailey and came home on a Corbin Carroll groundout.

Gurriel, who had two of the Diamondbacks' five hits, followed with a ground-rule double, and he scored on a Jace Peterson base hit.

The Giants tied the game in the fifth when Davis singled, Brandon Crawford hit an RBI triple and Isan Diaz added an RBI single.

The base hit was Diaz's first of the season after beginning 2023 in an 0-for-15 slump.

Wilmer Flores had a double and two singles for the Giants, and Davis finished with two hits.

--Field Level Media