Daniel Koellerer defeated Joao Souza 6-4 6-2 in the Costa Do Sauipe q32 on hard. The upset overturned the form book — Joao Souza came in leading the head-to-head 2–0. Daniel Koellerer claimed a first win over Joao Souza in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-01-28 | Colombia F2 | QF | clay | Joao Souza | 7-5 6-4 |
| 2008-01-21 | Colombia F1 | QF | clay | Joao Souza | 7-6(8) 7-6(6) |
Averages over each player's completed matches in the selected window (45 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About