Game 1 started at 8:10 p.m. ET on Thursday and ended at 1:54 a.m. ET on Friday.
After 60 minutes of regulation, 79:47 of overtime was played before Tkachuk's game-winner.
The game was so long, in fact, that a fan actually fell asleep behind Florida's bench.
"It's very cool, and very cool to be on the winning side of that," Tkachuk said. "You've got to tip your cap to how both teams played. Fourth overtime and guys are blocking shots and diving to get pucks out. I don't even know how many blocked shots there were on both sides."
Skating nearly nine miles, Brandon Montour led all players with 57:56 of ice time, the highest single-game total ever by a Panther and the ninth-highest since 1997-98. Across the ice, Brent Burns led the Hurricanes with 54:43 of ice time, the most ever for a Carolina player.
Additionally, three other players also skated 50-plus minutes: Panthers defensemen Gustav Forsling (55:41) and Aaron Ekblad (52:10), and Hurricanes defenseman Jaccob Slavin (51:41).
Among Florida's forwards, seven different skaters saw at least 35 minutes of ice time.
"Both teams spent what they had," Panthers head coach Paul Maurice said. "That's a huge cost for both teams, and then it's a race to recover."
To read more about Montour's minutes in particular, click
HERE
.