

Danielle Collins defeated Iga Swiatek 6-4 6-1 in the Australian Open semi-final on hard. The upset overturned the form book — Iga Swiatek came in ranked #3, leading the head-to-head 8–1, defending last year's round of 16. Danielle Collins narrowed the head-to-head to 8–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-06-30 | Wimbledon | R32 | grass | Iga Swiatek | 6-2 6-3 |
| 2025-05-06 | Rome | R32 | clay | Danielle Collins | 6-1 7-5 |
| 2024-07-29 | Paris Olympics | QF | clay | Iga Swiatek | 6-1 2-6 4-1 RET |
| 2024-03-06 | Indian Wells | R64 | hard | Iga Swiatek | 6-3 6-0 |
| 2024-01-15 | Australian Open | R64 | hard | Iga Swiatek | 6-4 3-6 6-4 |
| 2023-08-14 | Cincinnati | R32 | hard | Iga Swiatek | 6-1 6-0 |
| 2023-08-07 | Montreal | QF | hard | Iga Swiatek | 6-3 4-6 6-2 |
| 2023-02-13 | Doha | R16 | hard | Iga Swiatek | 6-0 6-1 |
| 2021-02-22 | Adelaide | QF | hard | Iga Swiatek | 6-2 3-0 RET |
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 (157 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.
Swiatek I.: 7 days rest · 1 match, 21 games (7d). Higher means fresher. About