Carlos Costa defeated Wayne Ferreira 6-4 7-6 in the Monte Carlo Masters round of 32 on clay. The upset overturned the form book — Wayne Ferreira came in leading the head-to-head 3–1. Carlos Costa narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-01-13 | Australian Open | R128 | hard | Wayne Ferreira | 6-3 6-2 6-2 |
| 1994-08-15 | Indianapolis | R16 | hard | Wayne Ferreira | 7-6(7) 6-7(3) 6-2 |
| 1993-06-21 | Wimbledon | R64 | grass | Wayne Ferreira | 2-6 6-2 6-7(4) 7-6(4) 8-6 |
| 1992-05-25 | Roland Garros | R32 | clay | Carlos Costa | 2-6 6-2 6-2 6-2 |
Averages over each player's completed matches in the selected window (98 vs 199). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About