The six-week thrashing of Atlanta is over.
Atlanta had gone 0-16-4 since Jan. 14. Hebert Vasiljevs scored his first career goal for the expansion Thrashers.
Though it may be a stretch, Ferraro joked that Atlanta's breakthrough coincided with the anniversary of the USA hockey team's improbable victory over the Soviet Union in the 1980 Winter Olympics.
"It is 20 years since the `Miracle on Ice?' Where was Al Michaels for this one?" Ferraro said.
After scoring seven goals in the last five games, Atlanta capitalized on Colorado penalties by converting 3 of 6 power-play chances to send the Avalanche to its fourth loss in six games.
Colorado missed a chance to move ahead of first-place Edmonton in the Northwest Division.
"I don't think we can fall any deeper or harder right now," Avalanche defenseman Sandis Ozolinsh said.
Atlanta's third power-play goal proved to be the difference as Ferraro followed Hnat Domenichelli's shot from the slot, slipped behind Avalanche goalie Marc Denis and pushed the puck past the left post with 9:49 remaining.
"We have good guys on the team. They kept trying," Atlanta coach Curt Fraser said. "I coach every day as if it is a new day, not a long march through the mud. We are in every gam and have not been rewarded for our hard work."
Colorado, 1-4-1 in its last six, failed to convert a power play after Ferraro's goal and finished the night 0-for-3 with a man-advantage.
Atlanta goalie Scott Langkow turned away several desperation shots in the final three minutes and finished with 34 saves.
"I'm not shocked at the result of this game," Colorado coach Bob Hartley said. "We're in a bad slump. We're not making great decisions and we're pressuring ourselves."
Ozolinsh scored two goals for the Avalanche, but he committed a costly turnover that Vasiljevs, a fellow Latvian, turned into a breakaway goal that tied the game 3-3 at 7:27 of the third.
Vasiljevs, called up last week, poked the puck away from Ozolinsh at the blue line and beat Denis with a backhand shot. Ozolinsh slammed his stick into the glass as Vasiljevs celebrated nearby.
"He looked a little sad, but I guess you don't look too happy when you get scored against," Vasiljevs said. "I might catch up with him if he talks to me. He might be mad at me."
Ozolinsh had given the Avalanche a 3-2 lead with a wrist shot from the right slot at 4:09.
Atlanta, which has one of the NHL's worst power-play units, converted two of its first three chances, the second coming when Patrik Stefan redirected a shot from the slot to give the Thrashers a 2-1 lead at 11:57 of the second.
Milan Hejduk picked up his 100th career point on the play when he was credited with the second assist.
The teams traded goals in the first period as Ozolinsh scored from the slot at 5:27 and Nelson Emerson countered nine seconds into a power play, beating Denis from a bad angle at 17:49.
Denis made his second straight start in place of Patrick Roy, sidelined by a strained groin. Roy needs one victory to tie Jacques Plante (434) for second on the NHL's career list.
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