"We're not looking too far ahead," Lackey said. "You can't make up 10 games in one day. You've just got to keep grinding at it."
On Tuesday night, the Red Sox won 6-3 in Atlanta as Jon Lester allowed three runs in six innings and broke a two-game personal losing streak.
Lackey (6-3) got his turn and kept his stingy season going, giving up eight hits and no walks while striking out nine in 6 1/3 innings. He has permitted two runs or less in eight of his 12 starts.
"I'm going out there and trying to compete, trying to pitch the best I could every five days, regardless of what's going on," Lackey said. "As a starter, you only get 30-something chances a year, so you've got to respect those and take full advantage of them."
Lackey's performance, "on the heels of what we've come off of (was) much needed," Boston manager John Farrell said. "When you look at the last two nights, both John Lackey and Jon Lester have done an excellent job of getting deep in the game."
Lackey combined with three relievers for Boston's first shutout of the season. He allowed more than one runner in just two innings and just one past second.
"If you throw strikes, you have a tendency to get any hitters aggressive and you can expand" the strike zone, Atlanta manager Fredi Gonzalez said. "We got nine hits, left all kinds of people on base. We just couldn't get that next one."
Gavin Floyd (0-2) gave up two runs in five innings and took his first career loss against the Red Sox after seven wins. He is 3-1 at Fenway Park.
Boston went ahead 1-0 in the second inning when Gomes led off with a single and kept going to second on a throwing error by shortstop Ramiro Pena.
"You just have to look past those things when those things happen and hope things will turn around," Floyd said.
The Red Sox added a run in the third on a double by Xander Bogaerts, one of his three hits, and singles by David Ortiz and Pierzynski.
Boston made it 3-0 in the sixth against Alex Wood when Gomes walked, took second on a single by Sizemore and scored on a double by Bradley. In Tuesday night's win, Bradley hit a two-run single in a four-run seventh when Boston took the lead.
The Red Sox reached Wood for another run in the seventh on an RBI single by Gomes.
In each of his first six innings, Lackey had at least one strikeout and didn't allow a runner past second. He retired the first hitter in the seventh then allowed singles to Tommy La Stella and Pena that put runners at first and third.
Lackey left after throwing 105 pitches. Chris Capuano retired Jason Heyward on a groundout as the runners advanced to second and third. Heyward's bat broke and Capuano fell on his back as he just avoided being hit by a broke piece.
More than 30 members of the 2004 Red Sox attended the pregame ceremony. ... Atlanta C Evan Gattis returned to the starting lineup after missing Tuesday night's loss when he strained his right wrist during batting practice. ... Braves SS Andrelton Simmons missed the game after leaving Tuesday night's loss with an inflamed right ankle. ... Atlanta 2B La Stella made his major league debut by going 2 for 4. ... Boston's Jake Peavy (1-2) pitches the finale of the two-game series against Mike Minor (2-3) on Thursday night.
Copyright by STATS LLC and The Associated Press
BOSTON, MA - MAY 28: Gavin Floyd #32 of the Atlants Braves pitches against the Boston Red Sox during the game at...