Davide Sanguinetti defeated Marzio Martelli 6-1 3-6 6-4 in the San Marino round of 32 on clay. The upset overturned the form book — Marzio Martelli came in leading the head-to-head 1–0, defending last year's round of 32. Davide Sanguinetti claimed a first win over Marzio Martelli in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-01-08 | Auckland | R32 | hard | Marzio Martelli | 6-4 7-6(1) |
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 (200 vs 21). ATP, WTA & Challenger.