

Madison Keys defeated Iga Swiatek 6-3 6-4 in the Cincinnati round of 16 on hard. The upset overturned the form book — Iga Swiatek came in ranked #5, leading the head-to-head 6–1, defending last year's round of 32. Madison Keys narrowed the head-to-head to 6–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-11-01 | Riyadh Finals | RR | hard | Iga Swiatek | 6-1 6-2 |
| 2025-04-22 | Madrid | QF | clay | Iga Swiatek | 0-6 6-3 6-2 |
| 2025-01-13 | Australian Open | SF | hard | Madison Keys | 5-7 6-1 7-6 |
| 2024-05-06 | Rome | QF | clay | Iga Swiatek | 6-1 6-3 |
| 2024-04-22 | Madrid | SF | clay | Iga Swiatek | 6-1 6-3 |
| 2022-03-07 | Indian Wells | QF | hard | Iga Swiatek | 6-1 6-0 |
| 2021-05-10 | Rome | R32 | clay | Iga Swiatek | 7-5 6-1 |
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
Keys M.: 1 day rest · 2 matches, 44 games (7d) · Swiatek I.: 2 days rest · 4 matches, 81 games (7d). Higher means fresher. About
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