Peter Lundgren defeated Shuzo Matsuoka 6-4 1-6 7-5 in the Indianapolis round of 16 on hard. The upset overturned the form book — Shuzo Matsuoka came in leading the head-to-head 1–0. Peter Lundgren claimed a first win over Shuzo Matsuoka in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-09-23 | Brisbane | R32 | hard | Shuzo Matsuoka | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.