Kirsten Flipkens defeated Venus Williams 4-6 6-3 7-6 in the Olympics round of 64 on hard. The upset overturned the form book — Venus Williams came in leading the head-to-head 2–1. Kirsten Flipkens narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-02-08 | Australian Open | R128 | hard | Venus Williams | 7-5 6-2 |
| 2013-08-26 | US Open | R128 | hard | Venus Williams | 6-1 6-2 |
| 2013-08-05 | Toronto | R64 | hard | Kirsten Flipkens | 0-6 6-4 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About