Theodoros Angelinos defeated Nikolaus Moser 6-4 6-2 in the South Africa F1 round of 16 on hard. The upset overturned the form book — Nikolaus Moser came in leading the head-to-head 2–0. Theodoros Angelinos claimed a first win over Nikolaus Moser in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-05-23 | South Africa F2 | QF | hard | Nikolaus Moser | 6-3 6-4 |
| 2010-05-24 | South Africa F2 | SF | hard | Nikolaus Moser | 4-6 7-6(4) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.