Dmitri Sitak defeated Orest Tereshchuk 6-3 6-2 in the Uzbekistan F4 round of 16 on hard. The upset overturned the form book — Orest Tereshchuk came in leading the head-to-head 1–0. Dmitri Sitak claimed a first win over Orest Tereshchuk in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-11-20 | Tunisia F5 | QF | hard | Orest Tereshchuk | 6-4 6-0 |