Miguel Pastura defeated Marcello Wowk 6-2 6-4 in the Argentina 2 Masters 4 round of 32 on clay. The upset overturned the form book — Marcello Wowk came in leading the head-to-head 1–0. Miguel Pastura claimed a first win over Marcello Wowk in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-10-04 | Argentina 2 Masters 3 | R16 | clay | Marcello Wowk | 2-6 7-5 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.