Giants finish sweep at Colorado; magic number 5, but Belt hit by pitch, X-rays inconclusive


DENVER — The Giants leave Coors Field after wrapping up the road portion of the season, and what fine away-from-home results they were, too.

After yet another late win Sunday — the Giants scored four in the ninth to snap a tie and win 6-2 — San Francisco polished off a 53-28 road record. Only two teams in franchise history compare: The 1912 New York Giants won 54 road games, the 1993 Giants 53.

The Giants improved their majors-best record to 102-54, their best winning percentage since 1913, and reduced their magic number to win the West to five with the second-place Dodgers remaining two games back after beating Arizona 3-0.

But on the day starter Kevin Gausman also appeared to rediscover his early-season form, there was one major concern: Brandon Belt, who leads the team with 29 homers and who has been the team’s hottest player, squared to bunt in the seventh and was hit by a pitch from Lucas Gilbreath.

Belt left with a left thumb injury after the inning, and manager Gabe Kapler said X-rays were inconclusive. Belt will be examined further in San Francisco. With the playoffs set to begin next week, any hand fracture for a hitter could knock him out for most, if not all, of the postseason.

“It’s scary, especially when it’s a fastball or a hard pitch on a guy’s hand or fingers, because there are so many little bones in there that can break,” shortstop Brandon Crawford said. “You need your hands; they’re pretty important in baseball, especially his throwing hand. But talking to him, he seems like he should be all right and hopefully not miss too much time.”

“It’s tough, obviously,” Gausman said of seeing Belt leave with an injury. “We’ve got six games left; they’re all very important. ... Hopefully, he can come back really quick.”

While Belt is a power hitter, he also is a good bunter, and Kapler had no problem with him squaring there, saying, “I was not surprised. That was a smart play against a tough lefty late in the game.”

The Giants took care of business at Colorado, where they have won six in a row for the first time.

A groundout by Crawford in the third sent in San Francisco’s first run, and in the fifth, Belt hit a bloop double and scored on a base hit by Kris Bryant.

Tommy La Stella put the team ahead with a two-strike single in the ninth, and Crawford provided the coup de grace with a three-run homer, his 23rd, an ongoing career high.

Now the Giants settle in at home for the next week-plus, no matter what happens, with a chance to clinch the NL West at Oracle Park in the coming days. They would play host to a Game 163 on Oct. 4 should they wind up in a tie with the Dodgers after 162.

“We’ve obviously put ourselves in a pretty good position,” Crawford said. “But at the same time, every game still matters a lot with the Dodgers right behind us. Not that we would want to anyway, but we can’t really take our foot off the gas here.”

Should the Giants wrap up the division this week, they’d play host to a division series starting Oct. 8. If they must play a wild-card game, that too would be at Oracle Park, on Oct. 6.

“I think we’re definitely glad to know that today is our last road game of the season, and I think we played really good baseball on the road,” Kapler said. “And it’s going to be nice to complete the season at home. With respect to the division race, I don’t know that that’s quite entered the immediate right-in-front-of focus for us yet.”

Gausman lines up to start a potential wild-card game, and the Giants wanted to see a strong performance from him after some less effective outings over the past two months. Done and done. He gave up three hits in six innings, struck out 11 and didn’t walk a batter. The run he allowed was on a homer by C.J. Cron, and Gausman was the only starter on the six-game trip to go more than four innings. He said he felt as if he was “back to my normal self when I was going good.”

“After watching video the last couple of weeks, I found something in my delivery and just tried to simplify things,” Gausman said. “Really, from the get-go, with the mechanical adjustment I made, I could tell the difference. My fastball was just right.”

Susan Slusser covers the Giants for The San Francisco Chronicle. Email: [email protected] Twitter: @susanslusser