Radim Zitko defeated Konstantinos Economidis 6-4 3-6 6-4 in the Australia F1 qualifying round on hard. The upset overturned the form book — Konstantinos Economidis came in leading the head-to-head 1–0. Radim Zitko claimed a first win over Konstantinos Economidis in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-03-27 | Australia F5 | F | clay | Konstantinos Economidis | 6-2 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.