Giants-Rockies Preview

The San Francisco Giants have an opportunity to secure their longest win streak in 11 years Saturday.

To accomplish that feat, they’ll have to sweep a doubleheader from the Colorado Rockies.

San Francisco (24-18) won its seventh straight by holding on 11-8 in Friday’s opener at Coors Field. The Giants scored four runs in the ninth then gave up four and allowed the tying run to come to the plate in the bottom of the inning.

Brandon Belt had three hits and homered for the fourth time in six games.

"That was a typical Coors Field game," manager Bruce Bochy said. "It’s one of those long nights, but you’re glad to get away with a win. … We had some boys in the pen that had a rough night, but they’ll bounce back."

That victory gives San Francisco a chance to pursue its first eight-game win streak since September 2011 and its first of nine or longer since a 10-game run in May 2004.

Buster Posey will also be looking to extend a 14-game hit streak after going 2 for 4 with three RBIs on Friday. Posey, who has two hits in each of his last two games against Colorado, is batting .375 with 13 RBIs in his run and has reached base safely in 23 consecutive contests.

Chris Heston (3-3, 3.72 ERA) will start the opening game for the Giants and try to bounce back from his shortest start. The right-hander was charged with five runs in two-plus innings Sunday in Cincinnati but avoided the loss when San Francisco rallied for a 9-8 victory.

Heston, owner of a 4.84 ERA on the road and a 2.77 home mark, gave up six runs in 5 1-3 innings in a 6-4 loss at Colorado on April 24. He allowed two runs in seven innings in a 2-0 home defeat to the Rockies (15-24) on April 13.

He’ll be opposed by Jordan Lyles (2-4, 4.53), who will seek to avoid dropping to 0-4 in his last five starts. The right-hander has a 6.63 ERA in his past four games and gave up four runs in six innings in a 4-3 defeat to Philadelphia on Monday.

Lyles went 0-1 with a 6.57 ERA in his two starts against San Francisco last season and allowed six runs in 6 1-3 innings in a 12-7 home loss Sept. 2.

Yusmeiro Petit (1-0, 3.27) will make his first start of the season for the Giants in the finale following 13 relief appearances. The right-hander made 12 starts in 2014 and two against Colorado, going 1-0 with a 6.30 ERA.

Petit is 2-1 with a 5.73 ERA in eight career starts versus the Rockies.

David Hale, meanwhile, will make his season debut for Colorado. The right-hander, acquired from Atlanta in a four-player deal Jan. 30, has made eight starts in two seasons and 47 appearances.

"I threw (at Coors Field). I threw in Albuquerque, which is actually higher elevation than (Denver), which was news to me. As for knowing I can do it at this level, I did it last year. That helps with my confidence," he told MLB’s official website.

Posey is 2 for 9 lifetime versus Lyles and 0 for 1 with a walk against Hale. D.J. LeMahieu is a combined 9 for 19 against the two Giants starters and has hit safely in eight of his last nine games.

San Francisco, winners of four consecutive road games, last took five in a row from April 23-May 5, 2014, and six straight in August 2012.