Alaaddin Karagoz defeated Karoly Gyorgy 6-2 6-4 in the Turkey Masters 2 round of 32 on hard. The upset overturned the form book — Karoly Gyorgy came in leading the head-to-head 1–0. Alaaddin Karagoz claimed a first win over Karoly Gyorgy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-05-25 | Turkey Masters 4 | R16 | hard | Karoly Gyorgy | 7-5 6-2 |