Ignacio Gonzalez King defeated Paulo Carvallo 3-6 6-3 6-4 in the Argentina F4 round of 16 on clay. The upset overturned the form book — Paulo Carvallo came in leading the head-to-head 3–1. Ignacio Gonzalez King narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-10-16 | Paraguay F2 | R32 | clay | Ignacio Gonzalez King | 7-5 6-2 |
| 1999-10-04 | Bolivia F3 | R32 | clay | Paulo Carvallo | 6-3 6-4 |
| 1999-05-17 | Chile F2 | R32 | clay | Paulo Carvallo | 6-1 6-1 |
| 1998-11-16 | Paraguay F3 | R32 | clay | Paulo Carvallo | 6-3 6-3 |