Theodoros Angelinos defeated Razvan Sabau 6-3 6-1 in the Romania F4 qualifying round on clay. The upset overturned the form book — Razvan Sabau came in leading the head-to-head 2–0. Theodoros Angelinos claimed a first win over Razvan Sabau in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-07-06 | Romania F9 | R32 | clay | Razvan Sabau | 2-6 6-3 5-4 |
| 2003-07-21 | Romania F5 | R16 | clay | Razvan Sabau | 4-6 6-3 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.