Iga Swiatek vs Marta Kostyuk - Preview & Prediction - 2026 WTA Canada Open

Iga Swiatek vs Marta Kostyuk — full preview, head-to-head breakdown and prediction for their QUARTERFINAL at the 2026 National Bank Open (WTA 1000 Canadian Open) in Toronto. A Roland-Garros rematch, and Kostyuk has been waiting for it.

Two months ago in Paris, Marta Kostyuk did what nobody expected: she beat four-time champion Iga Swiatek 7-5, 6-1 in the fourth round at Roland-Garros — having never won a single set against her in three previous meetings. Kostyuk has said openly she "can't wait to play her again."

She has earned the rematch in style. Now a career-high World No. 11 with a 29-6 record in 2026, the Ukrainian has won the Madrid Open — a WTA 1000 title, beating Mirra Andreeva 6-3, 7-5 in the final — and reached semifinals at both Roland-Garros and Wimbledon. In Toronto she came through Katherine Sebov 7-6(4), 6-0 and then dismantled No. 19 seed Madison Keys 6-3, 6-1. That's 24 wins in her last 26 matches.

Iga Swiatek, World No. 3 and a six-time Grand Slam champion with 26 tour-level titles, has looked ominous this week. She opened with a 6-0, 6-3 win over Sara Bejlek — including a nine-game run to start — and then brushed aside Viktorija Golubic 6-2, 6-1. She has dropped almost nothing.

The head-to-head matters here: Swiatek leads 3-1 overall, and crucially she is 2-0 against Kostyuk on hard courts, winning both in 2026's predecessor season. Paris was clay. This is not. Does the Roland-Garros result travel?

🎾 IN THIS VIDEO

- The tactical adjustment that beat Swiatek in Paris

- Whether it holds up on a faster court

- Swiatek's return position and Kostyuk's serve under pressure

📊 MATCH INFO

Tournament: 2026 National Bank Open, Toronto (WTA 1000 / Canadian Open)

Round: Quarterfinal — Singles

Players: Iga Swiatek (POL, No. 3) vs Marta Kostyuk (UKR, No. 11)

Head-to-head: Swiatek leads 3-1 — but Kostyuk won the last meeting (Roland-Garros 2026, 7-5 6-1)

Surface: Outdoor Hard

Venue: Sobeys Stadium, Toronto, Canada

💬 Swiatek or Kostyuk? Predicted scoreline in the comments.

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⚠️ Independent tennis analysis and commentary. Predictions are opinion only and not betting advice. Not affiliated with the WTA or the National Bank Open.

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