Ellis Ferreira defeated Grant Stafford 6-4 3-6 6-1 in the Washington round of 64 on hard. The upset overturned the form book — Grant Stafford came in leading the head-to-head 1–0. Ellis Ferreira claimed a first win over Grant Stafford in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-06-03 | USA 3 Masters 1 | R32 | hard | Grant Stafford | 6-0 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.