Nikolay Davydenko defeated Yevgeny Kafelnikov 6-2 6-4 in the Estoril quarter-final on clay. The upset overturned the form book — Yevgeny Kafelnikov came in leading the head-to-head 1–0. Nikolay Davydenko claimed a first win over Yevgeny Kafelnikov in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-12-31 | Doha | R16 | hard | Yevgeny Kafelnikov | 6-7(4) 6-4 6-4 |
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 50). ATP, WTA & Challenger.