Mats Wilander defeated Marc Rosset 6-7 7-5 7-5 in the New Haven quarter-final on hard. The upset overturned the form book — Marc Rosset came in leading the head-to-head 1–0, defending last year's final. Mats Wilander claimed a first win over Marc Rosset in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1990-10-15 | Lyon | F | clay | Marc Rosset | 6-3 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.