Matt Stajan scored the winning goal 42 seconds into overtime, and the Calgary Flames defeated the Buffalo Sabres 2-1, giving them their first victory in Buffalo since 1996.
Stajan took a pass from Paul Byron, who also scored for Calgary (13-15-4), before skating toward the left faceoff circle and firing a wrist shot past Jhonas Enroth for his sixth of the season.
Karri Ramo made 26 saves for Calgary, which defeated the Carolina Hurricanes 2-1 in overtime Thursday.
Matt Moulson scored for Buffalo (7-23-3), who got 24 saves from Enroth.
Sabres rookie forward Zemgus Girgensons made the play that opened the scoring. He skated down his off wing before centering the puck toward the slot. It was there that Moulson, who had a step on backchecking Mike Cammalleri, beat Enroth for his 11th of the season 5:40 into the third period to give Buffalo a 1-0 lead.
Calgary had a strong chance to tie the game with 12:03 left in the third when Joe Colbourne led a 2-on-1 rush alongside Brian McGrattan. Colbourne fired a hard wrist shot, but Enroth made a glove save to preserve the lead. But 22 seconds later, Byron tied the game.
Chris Butler found Byron with a pass from behind the net. From there, Byron lifted the puck past a falling Enroth for his first of the season at 8:19.
Each team thought they scored in the first period.
Cammalleri was certain he opened the scoring with 18 seconds left and Ramo pulled for an extra attacker following a delayed penalty to Marcus Foligno. Cammalleri took a centering pass from T.J. Brodie and beat Enroth in close, but the Flames had too many men on the ice, which negated the goal.
The Sabres had their chance 10:57 into the first period when Ville Leino's shot from the half-wall was blocked and the puck went directly to Brayden McNabb at the point. McNabb's slap shot was stopped by Ramo and the puck sat in the crease in the middle of a mad goalmouth scramble. Leino eventually deposited the puck in the goal, but by then the net had been pushed off its moorings.
Brian Flynn appeared to beat Ramo in close 2:42 later, but his shot went off the crossbar, the second time in the period the Sabres struck iron.
Calgary had quality chances after Foligno took his third penalty of the game 11:58 into the second, particularly Kris Russell's point shot eight seconds into the power play. It was during that penalty kill Buffalo defenseman Tyler Myers led a 3-on-2 shorthanded rush that resulted in another hit post.
With 1:03 remaining in the second period, Brodie was whistled for hooking Moulson to give Buffalo its fifth power play of the game. The Sabres would not score, making the teams a combined 0-for-9 with 11 shots.
The Flames and Sabres entered ranked 25th and 26th, respectively, in power-play efficiency.
Buffalo finished the game without forward Cody McCormick, who left in the second period with an upper-body injury.