TORONTO — Jessica Pegula is a win away from defending her Canadian Open title, which will feature a couple of Americans duelling for the championship.

Pegula earned a 6-4, 6-3 win over Russia’s Diana Shnaider on Sunday night, and on Monday the 30-year-old from nearby Buffalo, N.Y., will face 22-year-old Amanda Anisimova from Freehold Township, N.J., for all the National Bank Open marbles.

Pegula won match point on a long rally, then looked into the crowd and pumped a fist.

In the very early stages of the match, Shnaider, the 20-year-old who upset top-seeded Coco Gauff in Round 3, looked to be headed for another big win, breaking Pegula to go up 2-0, finishing with a cross-court forehand winner, not giving the No. 3 seed a single point in the game.

But Pegula broke Shnaider right back, and she did it again to go up 4-3 in the opening set. After Shnaider gave up that second break point, sending a backhand into the net, she smacked her racquet into the court in frustration, while Pegula yelled “Let’s go!” and pumped a fist.

In set No. 2, the women were on serve until Pegula earned another break point and Shnaider double-faulted to put Pegula up 4-3. The American never looked back.

Earlier Sunday, Anisimova — the world No. 123 who took a break from the game last season due to burnout, and is climbing her way back up the world ranking — beat fellow American Emma Navarro in a three-setter to crack her first WTA 1000 final.

Pegula, meanwhile, is looking for a sixth career title, and to defend the championship she won at the National Bank Open last year in Montreal. A title defence hasn’t happened at this tournament in more than 20 years — Martina Hingis was the last to do it, winning in both 1999 and 2000.