Michael Chang defeated Mikael Pernfors 6-3 5-7 6-2 in the New Haven round of 64 on hard. The result followed the form book — Michael Chang came in leading the head-to-head 2–0, defending last year's round of 32. Michael Chang extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-07-29 | Los Angeles | R32 | hard | Michael Chang | 2-6 6-1 7-6 |
| 1990-08-27 | US Open | R128 | hard | Michael Chang | 6-0 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.