Miguel Miranda defeated Juan Pablo Guzman 4-6 6-1 6-2 in the Argentina 4 qualifying round on clay. The upset overturned the form book — Juan Pablo Guzman came in leading the head-to-head 3–0. Miguel Miranda claimed a first win over Juan Pablo Guzman in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-04-24 | Chile F5 | R16 | clay | Juan Pablo Guzman | 6-1 7-6(10) |
| 1999-04-10 | Chile 1 Masters 3 | R32 | clay | Juan Pablo Guzman | 6-4 6-1 |
| 1998-08-10 | Ecuador F2 | R32 | clay | Juan Pablo Guzman | 6-4 5-7 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.