Luis Horna defeated David Nalbandian 6-4 6-3 in the Buenos Aires round robin on clay. The upset overturned the form book — David Nalbandian came in leading the head-to-head 1–0. Luis Horna claimed a first win over David Nalbandian in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-02-25 | Acapulco | SF | hard | David Nalbandian | 7-5 6-1 |
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 (51 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About