Giants score plenty to back up Samardzija

SAN FRANCISCO — Buster Posey hit an RBI double in the first and a sacrifice fly two innings later, Jeff Samardzija struck out five pitching into the seventh and the San Francisco Giants snapped a five-game losing streak by beating the Colorado Rockies 9-2 on Monday night.

Brandon Belt and Denard Span each added run-scoring triples to back Samardzija (3-9), who lost his first three starts against the Rockies this year. He won for the first time in four total starts after losing his previous two decisions since beating the Brewers on June 5.

Joe Panik hit a sacrifice fly in the fourth as San Francisco went ahead 50 against Rockies rookie right-hander German Marquez (5-4), then Panik added an RBI single in the eighth. Brandon Crawford hit an RBI single in the seventh as the Giants ended a nine-game losing streak to Colorado with just their second win in 14 games overall.

Colorado dropped its season-high sixth straight game a day after surrendering a record five runs on wild pitches by Adam Ottavino in a forgettable 12-6 loss to Los Angeles at Dodger Stadium. The skid comes on the heels of a six-game winning streak.

After DJ LeMahieu’s third-inning single, Samardzija retired the next 10 Rockies in order before Mark Reynolds singled to start the seventh. Samardzija left to a standing ovation after allowing Trevor Story’s one-out single three batters later. The big right-hander didn’t walk a batter in 6 1/3 innings, allowing two runs and six hits.

Tony Wolters also singled in a run for the Rockies.

Marquez, who had allowed only three earned runs in his last three starts, was tagged for five runs and seven hits in four innings.

Rox trade — The Rockies added depth by acquiring lefty Zac Rosscup from the Cubs in a trade that sends right-hander Matt Carasiti to Chicago. Colorado said Rosscup would be added to the 40-man roster and optioned to Triple-A Albuquerque.

Rosscup was designated for assignment Thursday after making one appearance for the reigning World Series champions. He pitched two-thirds of an inning May 22 against the Giants.

Trainer’s room — Giants: LHP Madison Bumgarner, sidelined since spraining his pitching shoulder in a Colorado dirt bike accident, reported “Yeah, it went good,” from his Sunday outing at the Arizona Rookie League. He is set to make another rehab outing Friday with Triple-A Sacramento, then at least one more, probably with Class A San Jose.