Marta Kostyuk vs Jessica Pegula — San Diego Semi-final
UKR6
USA1
Kostyuk M.
Marta Kostyuk defeated Jessica Pegula 7-6 6-1 in the San Diego semi-final on hard. The upset overturned the form book — Jessica Pegula came in ranked #4, leading the head-to-head 4–2. Marta Kostyuk narrowed the head-to-head to 4–3.
Key context
- Match story: Marta Kostyuk came through a tight passage before pulling clear — 7–6 6–1.
Head to head
2–4| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-04-21 | Madrid | R32 | clay | Marta Kostyuk | 6-1 6-4 |
| 2026-01-04 | Brisbane | SF | hard | Marta Kostyuk | 6-0 6-3 |
| 2025-09-24 | Beijing | R16 | hard | Jessica Pegula | 6-3 6-7(4) 6-1 |
| 2025-03-18 | Miami | R16 | hard | Jessica Pegula | 6-2 6-3 |
| 2023-01-16 | Australian Open | R32 | hard | Jessica Pegula | 6-0 6-2 |
| 2022-08-15 | Cincinnati | R32 | hard | Jessica Pegula | 6-7(5) 6-1 6-2 |
Serve vs return
This seasonEach player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Serve & return on hard
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Statistics
This seasonAverages over each player's completed matches in the selected window (117 vs 151). ATP, WTA & Challenger.
Clutch
Under pressurePerformance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Umpiry Score
Pre-matchThe Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Freshness
Recent loadKostyuk M.: 3 days rest · 3 matches, 57 games (7d) · Pegula J.: 5 days rest · 2 matches, 54 games (7d). Higher means fresher. About