Kresimir Ritz defeated Ivan Cinkus 5-7 6-3 6-1 in the Croatia F5 round of 32 on clay. The upset overturned the form book — Ivan Cinkus came in leading the head-to-head 1–0. Kresimir Ritz claimed a first win over Ivan Cinkus in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-10-23 | Greece F6 | R32 | hard | Ivan Cinkus | 6-4 3-6 6-3 |