Point made it 3-2 at 15:54 with a breakaway goal set up by a stretch pass from Mikhail Sergachev that split two defenders.
"I was pretty flat-footed so I just tried to skate away from those two guys," Point said. "I just made a quick move and lucky that it went post and in."
The Lightning pulled Vasilevskiy for an extra attacker with 3:14 left in the third period and controlled much of the possession time in their offensive zone, but Kuemper made eight saves in the final stretch to close out the game.
"I thought we did a great job of keeping the puck away from the front of our net, had a couple of big blocks," Avalanche coach Jared Bednar said. "I thought we did a really nice job of collapsing in there, making sure they had to shoot from the perimeter. Darcy makes a couple of saves, the guys did a nice job clearing the rebounds."
NOTES: The 18-game point streak extends the Avalanche/Quebec Nordiques record. The previous mark was 16, from Dec. 27, 2000-Jan. 30, 2001. … The Avalanche swept the season series against the Lightning (2-0-0) for the first time since 2009-10. ... Kadri has scored 10 points (four goals, six assists) during a six-game point streak. He has matched his NHL career high with 61 points (19 goals, 42 assists). ... Point has scored 19 points (10 goals, nine assists) in his past 17 games. ... Avalanche defensemen have accounted for an NHL-high 44 goals this season. ... Kucherov had a game-high eight shots on goal.