Giants 4, Rockies 3: Brandon Belt singled home the go-ahead run as San Francisco scored twice in the bottom of the eighth inning to rally past visiting Colorado and take two of three in the series.

The Giants loaded the bases with one out in the eighth against Matt Belisle (5-7) before Marco Scutaro tied the game with a single to right and Belt followed with a base hit to left. Scutaro and Brandon Crawford each had two hits while Guillermo Moscoso (2-2) pitched two scoreless innings for the victory.

Michael Cuddyer collected three singles and Nolan Arenado delivered two hits and two RBIs for Colorado, which dropped to 1-5 on its road trip. Santiago Casilla pitched around a two-out single in the ninth for his second save as the Giants completed their first winning homestand (4-3) since May 20-26.

Gregor Blanco singled to lead off the third and later scored on Pablo Sandoval’s two-out base hit as the Giants edged in front 1-0. San Francisco starter Yusmeiro Petit retired the first 11 batters before walking Corey Dickerson in the fourth and he scored on Arenado’s single to tie the contest.

The Rockies posted four hits in the sixth inning, including run-scoring singles by Arenado and Charlie Culberson, to take a 3-1 lead and end Petit’s day. The Giants loaded the bases with none out in the seventh, but could only manage Hunter Pence’s sacrifice fly.

GAME NOTEBOOK: San Francisco finished 10-9 against the Rockies this year and has not lost a season series to Colorado since 2008 (7-11). … Petit was charged with three runs on six hits while striking out seven over 5 2/3 innings and Colorado starter Juan Nicasio allowed one run, five hits and four walks in five innings … The Giants start a four-game set at the Los Angeles Dodgers on Thursday while Colorado begins a three-game series at Arizona on Friday.