Guillermo Canas defeated Nicolas Massu 7-5 6-2 in the Umag round of 32 on clay. The result followed the form book — Guillermo Canas came in leading the head-to-head 2–1, defending last year's semi-final. Guillermo Canas extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-16 | Dusseldorf | RR | clay | Guillermo Canas | 6-2 1-6 6-3 |
| 2002-07-22 | Kitzbuhel | R32 | clay | Nicolas Massu | 6-4 5-7 6-3 |
| 2000-02-21 | Mexico City | R32 | clay | Guillermo Canas | 4-1 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 (60 vs 50). ATP, WTA & Challenger.