Julian Alonso defeated Davide Sanguinetti 7-5 6-4 in the San Marino round of 32 on clay. The upset overturned the form book — Davide Sanguinetti came in leading the head-to-head 1–0, defending last year's round of 16. Julian Alonso claimed a first win over Davide Sanguinetti in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-11 | Rome Masters | R64 | clay | Davide Sanguinetti | 6-1 6-0 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (32 vs 200). ATP, WTA & Challenger.