Tomas Zivnicek defeated Jovan Savic 6-3 4-6 6-3 in the Mexico 1 Masters 4 round of 32 on hard. The upset overturned the form book — Jovan Savic came in leading the head-to-head 1–0. Tomas Zivnicek claimed a first win over Jovan Savic in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-07-12 | Austria F2 | QF | clay | Jovan Savic | 6-1 6-7 6-3 |