WASHINGTON -- Matt Calvert scored at 12:22 of overtime to give the Columbus Blue Jackets a 5-4 win against the Washington Capitals in Game 2 of the Eastern Conference First Round at Capital One Arena on Sunday.
Sergei Bobrovsky made 54 saves and Cam Atkinson scored two goals for the Blue Jackets, who lead the best-of-7 series 2-0.
Game 3 is at Columbus on Tuesday.
[WATCH: All Blue Jackets vs. Capitals highlights | Complete Capitals vs. Blue Jackets series coverage]
Calvert won it when he put Zach Werenski's rebound past Braden Holtby. The goal was upheld after being reviewed for offside. The Blue Jackets won Game 1 in overtime too, 4-3.
"Two games in overtime, that can really crush a team," Calvert said.
T.J. Oshie scored the game-tying goal at 16:25 on the power play to make it 4-4.
Alex Ovechkin had two goals for the Capitals, who also lost the first two playoff games at home last season against the Pittsburgh Penguins.
Video: CBJ@WSH, Gm2: Ovechkin rips shot by Bobrovsky for PPG
"You're right now in hard position," Ovechkin said. "But it's going to be fun when we bounce back and [we're] going to tie the series and come back here and play Game 5 at home."
Jay Beagle, who played his first game since April 1 because of an upper-body injury, scored at 2:12 of the first period when he deflected Brooks Orpik's shot past Bobrovsky.
Ovechkin made it 2-0 for the second straight game with a power-play goal at 13:26.
Atkinson scored at 18:25 when Nick Foligno hit him with a stretch pass behind the defense, and he slipped the puck under Philipp Grubauer's pads to make it 2-1.
Video: CBJ@WSH, Gm2: Atkinson tucks puck home on breakaway
Ovechkin's second power-play goal at 4:09 of the second period made it 3-1 after a cross-ice pass from Nicklas Backstrom.
But the Blue Jackets rallied again with Josh Anderson's goal at 8:49 of the second on a 5-on-2 rush to make it 3-2. Atkinson's second goal of the game came on the power play at 11:13 of the second to tie it 3-3.
Washington went 3-for-7 on the power play; Columbus was 2-for-4.
Holtby replaced Grubauer in goal for the Capitals to start the third period. Grubauer allowed four goals on 22 shots. Holtby made seven saves.
Bobrovsky kept the Blue Jackets in it. It was 3-1 when he stopped a hard wrister from Oshie at 14:44 of the second. He denied Backstrom on the power play after a cross-ice pass at 5:29 of the second with the score tied 3-3.
Video: CBJ@WSH, Gm2: Bobrovsky stops Backstrom in tight
"The game is dictating what I should do," Bobrovsky said. "You're still here to win and tonight dictated you have to make more saves than usual."
Bobrovsky set a Blue Jackets record for saves in a playoff game, breaking his own record of 48 set in 2014. In overtime, he spoiled a chance by Chandler Stephenson 14 seconds in to extend the game.
"I think we take for granted how special he is and how big he is for us," Blue Jackets defenseman Seth Jones said. "Some of the saves he makes in big-time situations … he gives us a chance to win every single night."
NHL teams that have taken a 2-0 lead on the road in a best-of-7 series have advanced 78.7 percent of the time (70-19).
"We're disappointed and we're mad," Backstrom said. "Yeah, we're down 2-0 and obviously we're playing a good hockey team. They've got two home games now. But we're going to do everything to turn things around. There's a lot of hockey left."
Goal of the game
Calvert's goal at 12:22 of overtime.
Video: CBJ@WSH, Gm2: Calvert nets OT winner with one hand
Save of the game
Bobrovsky against Stephenson 14 seconds into overtime.
Video: CBJ@WSH, Gm2: Bobrovsky denies Stephenson in OT
Highlight of the game
Oshie's power-play goal at 16:25 of the third period.
Video: CBJ@WSH, Gm2: Oshie nets PPG to tie the game
They said it
"If anything, we need to stay out of the box, but you never know what's a call and what's not anymore. But that's the game right now. We can definitely elevate our game." -- Blue Jackets forward Cam Atkinson
"We're actually an emotional team and feel like we like to get involved in stuff. But, I don't know. Maybe we should just focus on the game here." -- Capitals forward Nicklas Backstrom on another blown two-goal lead
Need to know
Capitals forward Andre Burakovsky left the game at 14:45 of the first period when he took a check from Blue Jackets forward Boone Jenner. He is day to day with an upper-body injury. … The Blue Jackets are the fifth NHL team to win each of the first two games of a playoff series when trailing by multiple goals (Philadelphia Flyers, 1995, 2012; Capitals, 1996; Los Angeles Kings, 2014). … It's the first time Columbus has ever held a 2-0 lead in a playoff series. … Bobrovsky broke the Blue Jackets record for saves in a playoff game, which he set in Game 5 of the first round against the Penguins in 2014 (48). … Linesman Steve Barton left in the second period due to injury. He was replaced by Garrett Rank.
Game 3 of Eastern Conference First Round at Nationwide Arena on Tuesday (7:30 p.m. ET; NBCSN, NBCSWA, FS-O, SN360, TVAS)
Video: Calvert's OT goal lifts Blue Jackets past Caps