Paul Haarhuis defeated Jimmy Connors 6-4 2-6 7-6 in the Philadelphia round of 32 on hard. The upset overturned the form book — Jimmy Connors came in leading the head-to-head 1–0. Paul Haarhuis claimed a first win over Jimmy Connors in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-08-26 | US Open | QF | hard | Jimmy Connors | 4-6 7-6(3) 6-4 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.