
Elise Mertens defeated Madison Keys 6-7 7-5 6-4 in the US Open round of 32 on hard. The upset overturned the form book — Madison Keys came in ranked #22, leading the head-to-head 4–1, defending last year's semi-final. Elise Mertens narrowed the head-to-head to 4–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-03-05 | Indian Wells | R32 | hard | Madison Keys | 6-2 6-7(8) 6-4 |
| 2023-08-14 | Cincinnati | R64 | hard | Elise Mertens | 6-3 3-6 6-3 |
| 2021-06-28 | Wimbledon | R32 | grass | Madison Keys | 7-5 6-3 |
| 2019-01-14 | Australian Open | R32 | hard | Madison Keys | 6-3 6-2 |
| 2017-08-28 | US Open | R128 | hard | Madison Keys | 6-3 7-6(6) |
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 (120 vs 105). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Mertens E.: 3 days rest · 3 matches, 61 games (7d) · Keys M.: 5 days rest · 2 matches, 49 games (7d). Higher means fresher. About