Robbie Weiss defeated Jacco Eltingh 7-6 4-6 7-6 in the Sao Paulo semi-final on clay. The upset overturned the form book — Jacco Eltingh came in leading the head-to-head 1–0. Robbie Weiss claimed a first win over Jacco Eltingh in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-01-14 | Australian Open | R128 | hard | Jacco Eltingh | 3-6 6-2 6-3 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.