Nathan Thompson defeated Juan Pablo Villar 6-3 6-2 in the Bolivia F3 round of 32 on clay. The upset overturned the form book — Juan Pablo Villar came in leading the head-to-head 2–0. Nathan Thompson claimed a first win over Juan Pablo Villar in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-11-06 | Brazil F18 | R32 | clay | Juan Pablo Villar | 7-5 7-6(7) |
| 2006-09-18 | Bolivia F2 | R16 | clay | Juan Pablo Villar | 6-3 7-6(5) |