Kornel Bardoczky defeated Adam Kellner 6-4 1-6 6-2 in the Hungary F1 round of 32 on clay. The upset overturned the form book — Adam Kellner came in leading the head-to-head 2–1. Kornel Bardoczky narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-10-18 | Greece F2 | F | carpet | Adam Kellner | 3-2 |
| 2009-10-12 | Thailand F5 | SF | hard | Adam Kellner | 2-2 |
| 2005-08-29 | Hungary F5 | R16 | clay | Kornel Bardoczky | 6-2 6-0 |