Pegula, the real world No. 1 on grass?

Aryna Sabalenka showed every bit of her champion’s character by coming back from 6–2, 4–0 down against Bartůňková to snatch her place in the semifinals in 2h23. It’s admirable. But this match cost the world number one enormously, physically and mentally; she had to dig deep into her reserves to overturn a desperate situation. Sabalenka is still the best player in the world, but her grass-specific metrics reveal a truth that the 9–3 H2H hides: she holds serve 74.4% of the time on this surface, saves 59% of break points on defense, and posts a dominance efficiency below 1 on grass over the last 52 weeks. Those numbers show that she struggles structurally on this surface even when she’s at 100%.

Jessica Pegula arrives in the opposite situation. Two tiebreaks played against Keys in 1h46, an intense match but physically manageable, and some of the best grass metrics in the draw: 84.4% of service games held, 71.7% of break points saved, 68.4% of pressure points won on serve. On grass over the last 52 weeks she’s running at a 75% win rate and she’s the champion at this tournament in 2024. The 9–3 H2H for Sabalenka is built entirely on hard courts and doesn’t reflect the reality of what will be at stake tomorrow on Steffi Graf Stadium.