Patrick Erhardt defeated Thomas Shimada 6-4 7-6 in the Portugal 3 Masters 3 round of 32 on clay. The upset overturned the form book — Thomas Shimada came in leading the head-to-head 1–0. Patrick Erhardt claimed a first win over Thomas Shimada in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-05-03 | Portugal 3 Masters 1 | QF | clay | Thomas Shimada | 6-0 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.