"It's history," Ovechkin said. "It's pretty good numbers and happy to be in that category. But just move forward. It's done. It's history. It was a very good match, big points and obviously big numbers."
Ovechkin scored his 12th goal of the season on a power play with 4:36 left in the second period of a 3-1 win.
The 35-year-old has scored 718 goals in 1,177 regular-season games in 16 seasons with the Capitals, who selected him with the No. 1 pick in the 2004 NHL Draft. Esposito scored 717 goals in 1,282 regular-season games in 18 NHL seasons with the Chicago Black Hawks, Boston Bruins and New York Rangers before retiring in 1981.
"I got to tell you, man, congratulations," Esposito said in a video played at the arena. "You are a fantastic hockey player, and I don't know how you score all those goals with the way these guys block shots with the great equipment that they wear. Good luck. Keep it going, but not against the Lightning (Esposito is vice president of corporate relations for Tampa Bay)."
Ovechkin has scored in four straight games, including goal No. 717 against the Buffalo Sabres on Monday, and in five of the past six.
No. 718 was scored was from his familiar spot in the left face-off circle, assisted by Nicklas Backstrom and Justin Schultz.
"It doesn't matter which -- one-timer, wrist shot, redirect -- a goal is a goal," Ovechkin said. "It's always a nice feeling to get it. … Great job by 'Nicky' and 'Schultzy' to move the puck past, and for me I just have to hit the net. Finally."
Backstrom has an assist on 268 Ovechkin goals. They have been teammates since Backstrom made his NHL debut in 2007-08.
"We [started] together, I think, to build this relationship and build this chemistry, and I think we enjoy [playing] together," Ovechkin said. "And I think we all understand how we have to play, and if we have that joy, I think we'll have fun, and it's hard to stop, especially when Nicky has the puck and he's flying out there. It's fun to watch. I just have to be open all the time and try to put a puck in. It's fun to play with him. He's one of the best."
With an assist on T.J. Oshie's goal at 10:36 of the second, Ovechkin became the second active player to score 1,300 NHL points, joining Toronto Maple Leafs forward Joe Thornton (1,521; 423 goals, 1,098 assists), and the 35th player in history.