The San Francisco Giants broke open a narrow game with four runs in the eighth inning and beat the Arizona Diamondbacks 6-1 at Oracle Park. Landen Roupp covered five innings, allowing San Francisco to control the game’s early shape before the offense created separation late. Drew Gilbert supplied a two-run homer, and the Giants finished the night with enough timely production to turn a 2-1 lead into a five-run margin.

San Francisco led 1-0 after the opening inning, saw Arizona level the game in the fourth, then answered in the fifth before delivering the decisive blow in the eighth. Gilbert went 1-for-3 with two RBIs and a home run, Jonah Cox went 2-for-3 with an RBI and a run, and Rafael Devers added two hits in four at-bats. Trent Harris followed with two scoreless innings and two strikeouts, preserving the Giants’ advantage through the finish.

The victory gave San Francisco a needed offensive finish against a Diamondbacks team that entered at 71-64 but managed only four hits from its lineup leaders. Arizona will need more than isolated production from Perdomo and Moreno to recover; San Francisco, now 55-79, showed that a controlled start and one productive late inning can still dictate the result.