Marner has 24 points (seven goals, 17 assists) during his point streak, which also began against the Sharks in a 4-3 overtime win on Oct. 27. Sittler had 33 points (17 goals, 16 assists) during his streak from Jan. 26-March 8, 1978, and Olczyk had 28 points (11 goals, 17 assists) from Dec. 2, 1989, to Jan. 8, 1990.
For their parts, Sittler and Olczyk couldn't have been happier for Marner.
Sittler watched the game with his son, Ryan, and Jack Valiquette, his former teammate with Toronto.
"I'm happy for Mitch," Sittler said. "Well done.
"He deserves it. He's such a skilled player, and he cares about this city, these fans, and this team. He does a lot for this community on and off the ice. He's such a great kid.
"Hey, when I was playing, records weren't monitored the same way. A reporter might add up some numbers from the game notes, then tell you you'd done something special. There was nowhere near the hype like Mitch had."
In London, Ontario, which is about two hours southwest of Toronto, Mark Hunter could not have been more pleased either.
It was Hunter, then the general manager of the London Knights of the Ontario Hockey League, who selected Marner with the 19th pick in the 2013 OHL Draft.
Two years later, Hunter helped convince the Maple Leafs to select Marner with the No. 4 pick in the 2015 NHL Draft as their director of player personnel.
"I'm happy for him," Hunter said. "I don't really think he gets enough credit for the skilled player he is, and, more importantly, how hard he works. He deserves this.
"The Maple Leafs mean everything to him. They always have. It's an amazing accomplishment he's achieved, but knowing the kid and his work ethic, I can't say I'm surprised."
Neither is Olczyk, who was part of TNT's broadcast team for the game between the Edmonton Oilers and Chicago Blackhawks at United Center on Wednesday.
"Really happy for him," Olczyk said from Chicago. "Of course I have a soft spot for him because he wears No. 16 for the Leafs just like I did.
"Welcome to the No. 18 club, Mitch. Now it's time to go get No. 19."
That opportunity will come Saturday, when the Maple Leafs visit the Tampa Bay Lightning at Amalie Arena. And should he register a point in that one, another water shower will surely be waiting for him.