Brad Marchand scored his 22nd objective in overtime Monday afternoon to provide the Boston Bruins a 2-1 success over the Calgary Flames.

After a turnover deep in the Flames end, Riley Nash sprung the Bruins leading scorer on a breakaway and Marchand made no error, slipping the puck through the pads of David Rittich.

David Pastrnak likewise scored for Boston (36-13-8). The Bruins moved within one point of the Tampa Bay Lightning for initially in the Atlantic Division. Boston holds 2 games in hand.

Matthew Tkachuk scored for Calgary (30-21-9). The Flames fell to 1-3-4 in their last 8 video games at the Scotiabank Saddledome.

Satisfying for the second time in 6 days, Calgary was territorially beat by a wide margin in the first period but Rittich kept the Flames in it.

Calgary tied it 1-1 at 5:28 of the second, striking on the power play. Sean Monahan’s shot was come by Tuukka Rask, however as the puck lied at the feet of Zdeno Chara in the crease, Tkachuk knocked in his 22nd objective.

The red-hot Tkachuk has 14 goals in his last 22 video games.

Rittich does his part

Rittich was beginning his fourth game in a row with veteran Mike Smith (lower body) still sidelined. It was a good bounce-back effort from Rittich. He was pulled Saturday night after quiting four goals on 15 shots.

The 25-year-old Czech was particularly sharp in keeping the score 1-1.

A minute after Calgary tied it, Rittich slid across the crease to get a glove on Marchand’s backhand out of mid-air after he was established by Patrice Bergeron.

Late in the 2nd, Rittich stabbed out his glove to rob Ryan Spooner on a breakway. In the 3rd, he stared down on Pastrnak on a breakaway and acrobatically got the toe of his left pad on his hazardous possibility.

Rittich finished with 30 stops to be up to 6-3-3.

Rask recuperates

Rask was also coming off a shortened outing in his previous start, pulled after quiting four objectives on eight shots in the very first period versus Vancouver.

David Pastrnak likewise scored for Boston (36-13-8). Rittich was beginning his 4th game in a row with veteran Mike Smith (lower body) still sidelined. It was a nice bounce-back effort from Rittich. He was pulled Saturday night after giving up four goals on 15 shots.

Rask had 28 saves to improve to 24-10-4.

Boston struck first at 5:59 when Michael Frolik coughed up the puck along the sideboards in his own end and Pastrnak pounced on it, quickly firing a shot past Rittich on his blocker side.