Ilya Kovalchuk was among four Thrashers to score while Johan Hedberg was solid in net in a 4-1 win over the Hurricanes that helped give Atlanta the Southeast Division crown.
Pascal Dupuis, Marian Hossa and Eric Belanger also scored goals for the Thrashers, who clinched the division with Tampa Bay's 7-2 home loss to Florida later Friday. Atlanta had earned its first playoff berth earlier this week.
"That's why we're all here," Kovalchuk said. "The regular season is good, but I personally have never played in the playoffs. I was waiting for that, and finally we're there."
Atlanta jumped to a 2-0 lead midway through the first period and never looked back in a solid all-around performance that followed its coach's "Game 7" request.
"I told them we were in that kind of situation and I think all of our guys deserve lots of credit," Hartley said. "We played a solid first period. We got the lead and then we built on it. We played simple. We played a very effective game."
It was clearly an upgrade over Wednesday night's frustrating 3-2 loss to Washington, which was at the bottom of the division.
While Kovalchuk and Dupuis got the Thrashers ahead early, Hedberg was steady the entire way. He finished with 32 saves, including holding off a pair of long 5-on-3 power plays for Carolina.
"We wanted to win the division and put ourselves to have home advantage in the first round," Hedberg said. "We had a good chance in Washington to almost put it away but we fumbled that one away. Tonight we had a lot of determination. We wanted to come out with a better effort."
It all came at the expense of a team that won't get the chance to defend its Stanley Cup title. The Hurricanes have lost five of six games and were eliminated from the playoff race earlier this week, making them just the third defending Cup champion to miss the postseason.
Anson Carter scored his first goal with Carolina, but the Hurricanes went 1-for-7 on the power play to continue their seasonlong struggles with the man advantage.
"When things are going well, things are bouncing your way and in," said Eric Staal, who assisted on Carter's score. "When things aren't, it tends to drag and be more difficult. They just don't seem to be hitting the back of the net as easily as they were at other times. It's been frustrating for sure."
Kovalchuk got the first goal on a quick transition score, which began when Keith Tkachuk stopped a pass from Dennis Seidenberg along the boards in Carolina's offensive zone. Tkachuk sent the puck ahead to Kovalchuk, who zipped a shot past Cam Ward from the right side barely 3 minutes into the game. Dupuis gave Atlanta all the insurance it would need 5 minutes later, cutting to the crease to take a centering pass from Brad Larsen from behind the net. Ward managed to stop the first shot, but Dupuis got his own rebound and buried the short putaway for the 2-0 lead. The Thrashers pushed it to 3-0 on Hossa's third-period score, then iced it with a score from Belanger - who was traded from Carolina to Nashville and was immediately dealt to Atlanta in February.
The Hurricanes had trouble taking advantage of their scoring chances. That included failing to convert on a two-man advantage of 1 minute, 41 seconds early in the second period, with Hedberg stopping an in-close shot from Staal to turn away the Hurricanes' best chance.
Carolina also came up empty on a two-minute, two-man advantage late in the third period.
TAMPA, Fla. - Olli Jokinen had a goal and an assist, and Ville Peltonen set up three goals to lead Florida past Tampa Bay.
The Panthers chased Lightning goalie Johan Holmqvist with four goals in their first 12 shots. Backup Marc Denis took over with 1:48 left in the first period.
Nathan Horton opened the scoring three minutes in with his career-high 31st goal. Noah Welch, David Booth and Jay Bouwmeester also scored in the first period, while Panthers goalie Ed Belfour faced only three shots at the other end.
Janis Sprukts and Jokinen extended the lead to 6-0 through two periods, and Kamil Kreps made it 7-0 early in the third.
Jason Ward spoiled the shutout with 8:41 to go, and Nick Tarnasky scored 45 seconds later.
DALLAS - Vladislav Nagy converted in the fourth round to send the Stars to a shootout victory that kept Anaheim from clinching its first Pacific Division title.
Jussi Jokinen, Sergei Zubov and Mike Modano failed to score in the shootout for the Stars before Nagy beat Anaheim goaltender Ilya Bryzgalov.
Stars goaltender Marty Turco stopped Corey Perry in the fourth round to give Dallas the victory after Anaheim's first three shooters - Andy McDonald, Ryan Getzlaf and Teemu Selanne - were unable to convert.
With a point for the overtime loss, the first-place Ducks eliminated the Stars from title contention in the Pacific Division.
Anaheim improved to 108 points, two better than second-place San Jose and three ahead of Dallas. All three teams have one game remaining.
Selanne gave the Ducks a 1-0 lead late in the second period with his 46th goal. Dallas tied it with 6.1 seconds left in regulation on Brenden Morrow's 15th goal.