Martin Bartonek defeated Jiri Vencl 6-3 6-4 in the Yugoslavia 4 round of 16 on clay. The upset overturned the form book — Jiri Vencl came in leading the head-to-head 3–0, but Martin Bartonek had been the form player, winning 2 of their last 5 on clay. Martin Bartonek claimed a first win over Jiri Vencl in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-08-21 | Yugoslavia 1 | R32 | clay | Jiri Vencl | 6-4 6-1 |
| 1999-10-25 | Czech Republic Masters 1 | QF | carpet | Jiri Vencl | 6-2 6-3 |
| 1999-10-25 | Czech Republic Masters 3 | R16 | carpet | Jiri Vencl | 6-4 6-4 |