Federico Dondo defeated Ricardo Mena 6-7 6-4 6-2 7-6 in the URU vs PAR round robin on clay. The upset overturned the form book — Ricardo Mena came in leading the head-to-head 2–1. Federico Dondo narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-04-04 | Davis Cup G2 SF: PAR vs URU | RR | clay | Ricardo Mena | 6-3 7-5 |
| 1993-11-06 | Uruguay Paraguay Masters 2 | R32 | clay | Ricardo Mena | 6-4 6-4 |
| 1992-05-11 | Brazil 3 Masters 1 | R32 | clay | Federico Dondo | 7-5 5-7 7-6 |