Chris Wilkinson defeated Joern Grunewald 6-3 7-6 in the Australia 3 Masters 3 round of 32 on clay. The upset overturned the form book — Joern Grunewald came in leading the head-to-head 1–0. Chris Wilkinson claimed a first win over Joern Grunewald in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-10-07 | Australia 3 Masters 2 | R16 | clay | Joern Grunewald | 7-5 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.