Juan Monaco defeated Martin Vassallo Arguello 6-3 4-6 7-5 in the Vina del Mar round of 16 on clay. The result followed the form book — Juan Monaco came in leading the head-to-head 2–0. Juan Monaco extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-11-02 | Valencia | R32 | hard | Juan Monaco | 6-3 6-2 |
| 2009-02-16 | Buenos Aires | R16 | clay | Juan Monaco | 6-4 2-6 6-2 |
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 61). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About