Inconsistency plagued Tim Lincecum during a career-worst season in 2012, and he's still trying to recapture the form he was accustomed to having earlier in his career.
He'll look to build off his latest victory while helping the San Francisco Giants win for just the second time in five games Saturday night against the host Colorado Rockies, who ended their lengthy losing streak against their NL West rivals in the last contest.
Lincecum went 10-15 with a career-worst 5.18 ERA in 2012, and the two-time Cy Young Award winner pitched mainly out of the bullpen in the postseason during San Francisco's run to a World Series title.
He didn't get off to a great start this season, either, but has showed signs of turning things around. After allowing five runs in each of his previous two starts, Lincecum (3-2, 4.07 ERA) gave up two hits in seven scoreless innings of a 5-1 win over Atlanta on Sunday.
"I'll take it," Lincecum said. "But I'm not jumping up in the air right now. ... I'm happy about it, but it's still a work in progress. I'm still working to get better."
One of Lincecum's worst outings came against Colorado on April 9, when he allowed six runs - including a homer to Troy Tulowitzki - in six innings before San Francisco rallied for a 9-6 victory.
Lincecum, though, is 4-1 with a 3.79 ERA in his last six starts at Coors Field. He'll look to help the Giants (24-18) bounce back after their 10-game winning streak over Colorado was snapped with Friday's 10-9 loss.
The Rockies (22-20), who haven't won back-to-back games since an eight-game run April 12-20, got a tie-breaking grand slam from Jordan Pacheco in the fifth before fending off a San Francisco rally in the late innings.
The Giants came back from six down Thursday to win the series opener 8-6.
"We know they've had our number over the last couple of years. They're the world champions, so you have to go through them eventually," manager Walt Weiss said. "We know all that stuff. (We've) got to go out and play well, find ways to win games."
Buster Posey homered and is hitting .484 with six home runs over his last 17 versus the Rockies, while former Colorado second baseman Marco Scutaro went 3 for 5 and is hitting .467 during a 14-game hitting streak against his former team.
Scutaro's overall hitting streak reached 16, batting .485 in that stretch.
Tyler Chatwood has been recalled from Triple-A to make the start for Colorado on Saturday, and he'll be tasked with slowing a San Francisco offense that has scored at least five runs in six of its last seven contests.
After giving up five hits in six scoreless innings of a 12-2 win over the Los Angeles Dodgers on April 29, Chatwood (1-0, 3.00) was sent back to the minors with Jhoulys Chacin coming off the disabled list.
The right-hander now is taking the roster spot of Jeff Francis, who is out with a strained groin.
"Anytime you go down (to the minors), you want to prove yourself and keep proving yourself," Chatwood said.
Weiss lauded Chatwood, who is 1-2 with a 2.93 ERA and one save in three starts and one relief appearance versus San Francisco.
"His command has been much better, and he was throwing the ball well (in Triple-A)," Weiss said. "I like the way he competes."
Despite Friday's win, the Rockies have dropped 12 of the last 15 home meetings with San Francisco.