Juan Ignacio Chela defeated Nicolas Almagro 6-2 6-2 in the Acapulco semi-final on hard. The upset overturned the form book — Nicolas Almagro came in leading the head-to-head 5–1, defending last year's round of 32. Juan Ignacio Chela narrowed the head-to-head to 5–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-02-14 | Buenos Aires | F | clay | Nicolas Almagro | 6-3 3-6 6-4 |
| 2011-02-07 | Costa Do Sauipe | SF | hard | Nicolas Almagro | 1-6 6-2 6-4 |
| 2010-10-25 | Vienna | QF | hard | Nicolas Almagro | 7-5 3-6 6-3 |
| 2009-04-20 | Barcelona | R32 | clay | Nicolas Almagro | 3-6 7-6(4) 6-3 |
| 2008-02-18 | Buenos Aires | QF | clay | Juan Ignacio Chela | 6-3 2-1 RET |
| 2007-02-19 | Buenos Aires | QF | clay | Nicolas Almagro | 6-4 6-3 |
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 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About