Mathias Hellstrom defeated Markus Kanellos 6-0 6-1 in the Turkey 1 4 qualifying round on clay. The upset overturned the form book — Markus Kanellos came in leading the head-to-head 1–0. Mathias Hellstrom claimed a first win over Markus Kanellos in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-05-07 | Turkey 1 2 | F | clay | Markus Kanellos | 3-6 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.