Nicolas Massu defeated Francisco Clavet 7-6 6-3 7-6 in the US Open round of 128 on hard. The upset overturned the form book — Francisco Clavet came in leading the head-to-head 3–0, defending last year's round of 128. Nicolas Massu claimed a first win over Francisco Clavet in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-10-01 | Tokyo | R16 | hard | Francisco Clavet | 6-3 6-4 |
| 2001-03-05 | Scottsdale | QF | hard | Francisco Clavet | 6-4 2-6 6-3 |
| 2001-02-12 | Vina del Mar | R32 | clay | Francisco Clavet | 6-3 2-1 RET |
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 88). ATP, WTA & Challenger.