Goran Ivanisevic defeated Goran Prpic 6-1 6-3 6-4 in the US Open round of 64 on hard. The upset overturned the form book — Goran Prpic came in leading the head-to-head 4–0. Goran Ivanisevic claimed a first win over Goran Prpic in five meetings, narrowing the head-to-head to 4–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-05-06 | Hamburg | QF | clay | Goran Prpic | 7-5 3-0 |
| 1991-02-04 | Milan | R32 | carpet | Goran Prpic | 6-3 3-6 6-4 |
| 1991-01-14 | Australian Open | R32 | hard | Goran Prpic | 6-3 6-4 6-3 |
| 1990-05-14 | Umag | F | clay | Goran Prpic | 6-3 4-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.