Jana Hlavackova defeated Klara Koukalova 6-0 6-3 in the Cagnes Sur Mer 25K round of 16 on clay. The upset overturned the form book — Klara Koukalova came in leading the head-to-head 2–0. Jana Hlavackova claimed a first win over Klara Koukalova in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-08-21 | Maribor 25K | SF | clay | Klara Koukalova | 6-4 6-2 |
| 1999-06-28 | Alkmaar 10K | R16 | clay | Klara Koukalova | 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.