Kim Clijsters defeated Venus Williams 4-6 7-5 6-1 in the US Open quarter-final on hard. The upset overturned the form book — Venus Williams came in defending last year's round of 16, but Kim Clijsters had been the form player, winning 1 of their last 8 on hard. Kim Clijsters extended the head-to-head to 7–6.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-08-30 | US Open | SF | hard | Kim Clijsters | 4-6 7-6(2) 6-4 |
| 2010-03-22 | Miami | F | hard | Kim Clijsters | 6-2 6-1 |
| 2009-08-31 | US Open | R16 | hard | Kim Clijsters | 6-0 0-6 6-4 |
| 2005-07-25 | Stanford | F | hard | Kim Clijsters | 7-5 6-2 |
| 2005-02-14 | Antwerp | QF | hard | Venus Williams | 6-2 6-3 |
| 2003-06-23 | Wimbledon | SF | grass | Venus Williams | 4-6 6-3 6-1 |
| 2003-02-10 | Antwerp | F | hard | Venus Williams | 6-2 6-4 |
| 2002-11-06 | WTA Tour Championships | SF | carpet | Kim Clijsters | 5-0 RET |
| 2002-07-29 | San Diego | QF | hard | Venus Williams | 6-3 5-7 6-4 |
| 2002-07-22 | Stanford | F | hard | Venus Williams | 6-3 6-3 |
| 2002-04-30 | Hamburg | F | clay | Kim Clijsters | 1-6 6-3 6-4 |
| 2001-08-27 | US Open | QF | hard | Venus Williams | 6-3 6-1 |
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 (177 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About