Marcelo Filippini defeated Lars Jonsson 4-6 6-4 6-1 in the Bastad round of 32 on clay. The upset overturned the form book — Lars Jonsson came in leading the head-to-head 1–0, defending last year's round of 16. Marcelo Filippini claimed a first win over Lars Jonsson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1991-07-08 | Bastad | R16 | clay | Lars Jonsson | 6-1 6-2 |
Averages over each player's completed matches in the selected window (86 vs 8). 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