Konstantinos Economidis defeated Jeroen Masson 6-4 6-3 in the Greece F1 qualifying round on hard. The upset overturned the form book — Jeroen Masson came in leading the head-to-head 1–0. Konstantinos Economidis claimed a first win over Jeroen Masson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-04-08 | Greece F1 | R16 | hard | Jeroen Masson | 6-2 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.