Madison Keys vs Marta Kostyuk Prediction 8/6/2026 Today’s Tennis Picks

Madison Keys and Marta Kostyuk face off in the third round of the National Bank Open in Toronto. The match is scheduled for Thursday, August 6th. This will be their third career meeting at the WTA level, with Keys holding a 2-0 lead over the Ukrainian. Here’s our Madison Keys vs Marta Kostyuk prediction. This preview will include a Madison Keys vs Marta Kostyuk pick.

Madison Keys vs Marta Kostyuk Preview

Madison Keys kicked off the National Bank Open with a straight-sets victory against Antonia Ruzic of Croatia. The American easily dispatched Ruzic 6-1, 6-2 in just 82 minutes. In the victory, Keys hit 6 aces and committed 6 double faults. She landed 62% of first serves in play and won 71% of first serve points (24/34). Keys won 57% of second serve points (12/21) and saved five of seven break points.

Keys bounces back after losing her last two matches. She was beaten by Liudmila Samsonova in Washington to begin the North American hard-court swing. And before that, she lost to eventual champion Linda Noskova at Wimbledon. Keys improves to 30-12 for the season and will look to reach her second successive quarterfinal at the National Bank Open.

Marta Kostyuk defeated Canadian wild card Katherine Sebov in straight sets to reach the third round of the National Bank Open. The first set was competitive and lasted for 56 minutes. Kostyuk came from behind (1-4) to win the set in the tiebreak. Sebov served for the opening set at 5-4, but could not convert her chance. Kostyuk was in total control in the second set, where she did not lose a single game.

In the victory, Kostyuk hit 5 aces and committed 7 double faults. Kostyuk landed 39% of first serves in play and won 73% of first serve points (16/22). Kostyuk won 53% of second serve points (18/34) and saved two of five break points in the match. Like Keys, Kostyuk is seeking a second successive quarterfinal at the National Bank Open, having achieved a career-best result in this tournament last year in Montreal.

Madison Keys vs Marta Kostyuk Head-To-Head

Keys and Kostyuk have met twice and on grass courts at Wimbledon. Keys won both matches in straight sets.

Madison Keys vs Marta Kostyuk Prediction

I’ll pick Keys here. She’s the value pick, starting this match at evens. Kostyuk has improved considerably in the last season and a half, but Keys can be unplayable when she’s off to a good start at any tournament, and I think she raised her level in that opening round to return to winning ways.

Nur Said's Pick: Keys in three sets