Gerald Mandl defeated Thomas Strengberger S597 6-2 6-4 in the Austria 1 Masters 3 round of 16 on clay. The upset overturned the form book — Thomas Strengberger S597 came in leading the head-to-head 1–0. Gerald Mandl claimed a first win over Thomas Strengberger S597 in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-04-05 | Mexico 2 Masters 2 | QF | hard | Thomas Strengberger S597 | 5-7 7-5 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.