Jessica Pegula defeated Katerina Siniakova 6-4 6-3 in the Washington round of 32 on hard. The result followed the form book — Jessica Pegula came in ranked #4, leading the head-to-head 5–1. Jessica Pegula extended the head-to-head to 6–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-06-17 | Berlin | R16 | grass | Jessica Pegula | 6-2 6-4 |
| 2025-10-06 | Wuhan | QF | hard | Jessica Pegula | 2-6 6-0 6-3 |
| 2025-06-22 | Bad Homburg | R16 | grass | Jessica Pegula | 6-2 6-3 |
| 2024-06-17 | Berlin | QF | grass | Jessica Pegula | 7-6(2) 3-6 6-3 |
| 2022-02-21 | Doha | R64 | hard | Jessica Pegula | 6-3 6-2 |
| 2021-06-21 | Bad Homburg | R16 | grass | Katerina Siniakova | 6-3 5-7 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Pegula J.: 4 days rest · 2 matches, 54 games (7d) · Siniakova K.: 10 days rest · 2 matches (14d). Higher means fresher. About