The night air in Toronto carried a chill well past midnight, but on the court at Sobeys Stadium, the temperature was rising. Elena Rybakina, the 6-foot tall Kazakhstani with a serve that can crack the sound barrier, found herself in a familiar fight: down a set, facing a younger, faster opponent, and running out of time. She had been here before—at the Australian Open, at Stuttgart—and each time, she had found a way. This time, against Coco Gauff, the fourth-seeded American who had already beaten her twice in their previous meetings, the path was no different. Rybakina dropped the opening set 5-7, then roared back to claim the next two 6-2, 6-2, punching her ticket to the National Bank Open final.

The match, originally scheduled for the evening session, was delayed by rain for over an hour. When play finally began, Gauff came out with the energy that has made her one of the most exciting players on tour. She broke Rybakina early, but the Kazakhstani fought back, leveling the first set at 3-3. The momentum swung again, and Gauff grabbed the set with a late break, winning 7-5. Yet Rybakina, known for her calm demeanor under pressure, did not panic. She adjusted her return position, began to read Gauff’s serve more effectively, and started to dictate rallies with her heavy groundstrokes. The second set was a clinic: Rybakina broke Gauff twice, lost only two games, and sent a message that this match was far from over.

The third set followed a similar script. Gauff, who had struggled with her first-serve percentage throughout the night, found herself pinned behind the baseline as Rybakina’s forehand crosscourt winners kept finding the lines. The Kazakhstani broke early and never looked back, closing out the match just before 1 a.m. as the sparse but loyal crowd roared. It was the latest finish of the tournament, a testament to the endurance required not just to win points, but to survive the delays and the mental toll of a grinding match.

Rybakina’s victory was her 13th career title, a number that includes her breakthrough Grand Slam at Melbourne Park in 2023 and a Stuttgart crown earlier this season. Her power game, built around a booming serve and flat, penetrating groundstrokes, has proven effective on hard courts, making her a formidable opponent in any condition. She will need every weapon in her arsenal against Iga Swiatek, who advanced to the final by outlasting Elina Svitolina in a three-set battle that also saw rain interruptions.

Swiatek, the seventh seed, struggled early against Svitolina’s crafty defense and net play. The Polish star dropped the second set 1-6 after winning the first, but regrouped in the decider. With the score tied at 3-3, Swiatek broke Svitolina’s serve at love, then raced to a 40-0 lead in the next game, converting her second match point to close out a 6-3, 1-6, 6-3 victory. The match began about an hour late due to rain, but Swiatek’s resilience—a hallmark of her 25 career titles—shone through.

Thursday night’s final will be the first meeting between Rybakina and Swiatek since Wimbledon 2023, where Rybakina won in straight sets. But Swiatek has since reclaimed the world No. 1 ranking and has shown remarkable consistency on hard courts. The matchup promises contrasting styles: Rybakina’s raw power and first-strike tennis against Swiatek’s relentless topspin, defensive prowess, and tactical intelligence. Both players have had to navigate unpredictable weather and late-night matches, adding an extra layer of unpredictability to the showdown.

As the sun rises over Toronto, both women will be preparing for what could be the most significant final of the tournament. Rybakina, who has already beaten Swiatek twice in their four meetings, will look to make it three. Swiatek, who has won the last two of their encounters, will aim to extend her edge. The stage is set for a classic.