Katarina Srebotnik defeated Nadia Petrova 6-1 6-4 in the Cairo 10K qualifying round on clay. The upset overturned the form book — Nadia Petrova came in leading the head-to-head 8–1. Katarina Srebotnik narrowed the head-to-head to 8–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-03 | Rome | R32 | clay | Nadia Petrova | 6-4 6-4 |
| 2009-08-31 | US Open | R128 | hard | Nadia Petrova | 6-3 6-3 |
| 2008-10-20 | Linz | R16 | hard | Nadia Petrova | 6-4 7-6 |
| 2008-05-05 | Berlin | R64 | grass | Nadia Petrova | 7-6 3-6 7-6 |
| 2008-02-25 | Dubai | R32 | hard | Katarina Srebotnik | 6-4 6-4 |
| 2007-07-30 | San Diego | R16 | hard | Nadia Petrova | 6-3 7-6 |
| 2003-09-22 | Leipzig | R32 | carpet | Nadia Petrova | 6-2 6-4 |
| 1998-04-08 | Dubrovnik 10K | F | clay | Nadia Petrova | 6-4 7-5 |
| 1998-04-01 | Hvar 10K | QF | clay | Nadia Petrova | 6-2 6-3 |
Averages over each player's completed matches in the selected window (178 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About