Way too high up here!

Pegula is coming off a boss-level match against Boulter yesterday, 6-4 6-4, holding 100% of her service games, zero breaks conceded in ten service games, Boulter without a single return game won out of ten. 11-4 on clay over the last 52 weeks, six wins in a row, 9-1 in her last ten matches. She’s the best clay-court player on tour right now and Madrid has historically suited her.

Kostyuk comes in with seven consecutive wins on clay, 12-3 on the surface over the last 52 weeks, a title in Rouen, and a notable win over Pegula in Brisbane at the start of the season. Her demolition of Putintseva yesterday shows how powerful her return is: 7 breaks converted out of 10, 72% of points won on the opponent’s first serve. But Putintseva is not Pegula, and the 7 double faults she hit yesterday are a sign that Kostyuk’s serve can crack under pressure. Against a Pegula who attacks second serves on the return and who didn’t drop a single service game against Boulter, every double fault will be costly. And the number that closes the debate is still this one: 3–9 against the top 10 in the last 52 weeks, 12–31 over her career. Pegula is ranked 5th in the world. The glass ceiling is structural.