

Elise Mertens defeated Jessica Pegula 6-1 6-3 in the Roland Garros round of 32 on clay. The upset overturned the form book — Jessica Pegula came in ranked #4, defending last year's quarter-final. Elise Mertens extended the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-05-06 | Rome | R32 | clay | Elise Mertens | 7-5 6-1 |
| 2025-01-13 | Australian Open | R64 | hard | Jessica Pegula | 6-4 6-2 |
| 2021-03-07 | Dubai | QF | hard | Elise Mertens | 5-7 7-5 6-0 |
| 2020-08-24 | Cincinnati | QF | hard | Elise Mertens | 6-1 6-3 |
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 clay field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (172 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Mertens E.: 3 days rest · 3 matches, 61 games (7d) · Pegula J.: 4 days rest · 2 matches, 54 games (7d). Higher means fresher. About