Michael Quintero defeated Adam Fass 6-4 7-5 in the El Salvador F2 qualifying round on clay. The upset overturned the form book — Adam Fass came in leading the head-to-head 2–0. Michael Quintero claimed a first win over Adam Fass in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-01-31 | Colombia F2 | R32 | clay | Adam Fass | 7-6(5) 5-7 6-3 |
| 2005-01-24 | Colombia F1 | R16 | hard | Adam Fass | 7-6(5) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.