Twice the Lightning failed to hold onto leads and fell to the Blackhawks 4-3 in a shootout on Friday night.
Anthony Cirelli, Victor Hedman and Ryan McDonagh scored for the Bolts in the loss that snaps a six-game winning streak.
Tampa Bay got off to a much stronger start on Friday night, controlling play in the early going and building a two-goal lead by the midway point of the first period.
Anthony Cirelli managed to jam home a rebound less than three minutes into the game to put the Lightning up a goal. Malcolm Subban made back-to-back stops on Cirelli and Brayden Point but failed to hang on to the rebound. Cirelli pounced and beat both Duncan Keith and Ian Mitchell to the loose puck in the crease.
Tampa Bay doubled their advantage at the 10:27 mark of the period. Just 21 seconds into their first power play chance of the night, Victor Hedman fired a shot from the point that deflected off Alex Killorn's knee and past Subban to make it 2-0.
Chicago pushed back and got within one on an Alex DeBrincat power play goal. With Carl Soderberg providing a screen in front, DeBrincat wristed home a shot from the left circle that Curtis McElhinney couldn't track.
DeBrincat's second goal of the night was the lone tally in the middle frame. From a sharp angle below the left faceoff dot, DeBrincat one-timed Patrick Kane's feed past McElhinney to tie the game at two.
The Bolts jumped back in front early in the third period on Ryan McDonagh's second goal of the season. Subban made the initial stop on Killorn but kicked the rebound directly to McDonagh who was crashing the net.
Tampa Bay couldn't make the lead last, as Dominik Kubalik tied the game less than three minutes after McDonagh. Duncan Keith's shot from the point got blocked in front and the puck fell right to Kubalik at the near post.
It was end-to-end action in overtime with both teams going up and down the ice with odd man rushes. Tampa Bay was gifted a golden opportunity to end it when Duncan Keith got called for slashing on Killorn with 1:56 remaining in overtime but the power play couldn't cash in, sending the game to a shootout.
The goaltenders matched one another with saves in the opening two rounds. In the third, Philipp Kurashev scored and Subban stopped Steven Stamkos to secure the second point for the Blackhawks.
The Bolts and Hawks close out the three-game series at the United Center on Sunday afternoon.
TBL | 2:51 Anthony Cirelli (7) - Brayden Point, Ondrej Palat
TBL | 10:27 Alex Killorn (5) - Victor Hedman, Ondrej Palat - PPG
CHI | 12:57 Alex DeBrincat (13) - Adam Boqvist, Patrick Kane - PPG
CHI | 7:18 Alex DeBrincat (14) - Patrick Kane
TBL | 3:20 Ryan McDonagh (2) - Alex Killorn, Tyler Johnson
CHI | 6:00 Dominik Kubalik (9) - Duncan Keith, Adam Boqvist