Rowand's two-run homer in the eighth inning lifted the Phillies to their third straight comeback victory, 5-4 over the Atlanta Braves on Wednesday night.
The Phillies have won a season-high four consecutive games and are one game under .500 at 13-14 for the first time since they lost their opener.
"When you get on a roll like this, it definitely changes the attitude and the confidence level of the team," said Rowand, who had a go-ahead, three-run triple in the seventh inning of an 8-5 win at Florida on Tuesday night.
"Any time you come from behind in the late innings, that's going to pick a team up and give you energy and momentum," Phillies manager Charlie Manuel said.
Chase Utley started the inning with a single and Rowand connected on an 0-1 pitch, sending a drive into the right-field seats. Rowand, who came to Philadelphia in the trade that sent slugger Jim Thome to the Chicago White Sox, has nine RBI in his last six games.
"Rowand's a good player, a team player," Manuel said. "He's a tough guy and a good guy. He talks at the right time. I like the way he plays. You have to sit and listen to him because he makes you."
Andruw Jones hit his ninth homer, a two-run shot for the Braves, who had won three straight.
Smoltz allowed three runs and seven hits, striking out five and retiring the last 12 batters he faced.
"It's frustrating," Smoltz said. "My brain has been working overtime with runners on."
Myers gave up three runs -- two earned -- and five hits, striking out five. He lowered his ERA to 3.11, while the rest of Philadelphia's starters -- Jon Lieber, Cory Lidle, Gavin Floyd and Ryan Madson -- have a combined ERA of 6.42.
The Phillies scored three in the third inning to take a 3-0 lead, but the Braves chipped away. Atlanta loaded the bases with no outs in the fifth, but only scored one run on Smoltz's double-play grounder.
Edgar Renteria started the sixth inning with an infield single, extending his hitting streak to 19 games, counting a hit in the final game last season. Renteria has hit in each of the 18 games he's played this year, sandwiched around nine games he missed with an injured rib cage.
After Chipper Jones flied out to deep right-center field, Andruw Jones hit Myers' next pitch into the left-field seats to tie it at 3.
Utley and Rowand had RBI singles in the third and Ryan Howard drove in a run on a fielder's choice groundout.
"Smoltz pitched a great game," Braves manager Bobby Cox said. "Myers threw well, but we came back."
- LF Pat Burrell and 3B David Bell weren't in the starting lineup for Philadelphia. They are a combined 2-for-43 against Smoltz, including Bell's pinch-hit, pop-out in the seventh inning.
- Andruw Jones has 33 homers against the Phillies. He's only 7-for-33 against Myers, but has four homers.
- The Phillies were 0-6 when they had a chance to close within one game of .500. They are 6-10 at home.
- Cormier hasn't allowed a run this season in nine innings, spanning 11 appearances.