Jelena Jankovic defeated Nicole Vaidisova 5-7 6-3 6-2 in the US Open round of 32 on hard. The upset overturned the form book — Nicole Vaidisova came in leading the head-to-head 6–2, defending last year's round of 16. Jelena Jankovic narrowed the head-to-head to 6–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-01-07 | Sydney | QF | hard | Nicole Vaidisova | 6-4 4-6 6-4 |
| 2007-10-15 | Zurich | R16 | hard | Nicole Vaidisova | 6-4 6-4 |
| 2007-05-28 | Roland Garros | QF | clay | Jelena Jankovic | 6-3 7-5 |
| 2007-01-08 | Sydney | SF | hard | Jelena Jankovic | 6-4 4-6 6-4 |
| 2006-10-23 | Linz | QF | hard | Nicole Vaidisova | 5-7 7-6(5) 6-4 |
| 2006-05-22 | Strasbourg | SF | clay | Nicole Vaidisova | 6-2 1-0 RET |
| 2005-09-26 | Seoul | F | hard | Nicole Vaidisova | 7-5 6-3 |
| 2005-03-23 | Miami | R64 | hard | Nicole Vaidisova | 6-2 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
Averages over each player's completed matches in the selected window (200 vs 142). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About