Juan Pablo Brzezicki defeated Oscar Hernandez 7-6 6-1 in the Vina del Mar round of 32 on clay. The upset overturned the form book — Oscar Hernandez came in leading the head-to-head 1–0, defending last year's round-robin. Juan Pablo Brzezicki claimed a first win over Oscar Hernandez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-04-14 | Houston | R32 | clay | Oscar Hernandez | 3-6 6-3 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 (13 vs 101). ATP, WTA & Challenger.