Horacio Zeballos defeated Santiago Giraldo 6-2 6-3 in the Barcelona round of 64 on clay. The upset overturned the form book — Santiago Giraldo came in leading the head-to-head 2–0, defending last year's round of 64. Horacio Zeballos claimed a first win over Santiago Giraldo in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-24 | Wimbledon | R128 | grass | Santiago Giraldo | 3-6 7-6 6-7 6-1 6-3 |
| 2005-10-03 | Colombia F6 | R32 | clay | Santiago Giraldo | 6-3 6-4 |
Averages over each player's completed matches in the selected window (89 vs 111). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About