Diego Junqueira defeated Antonio Couvert 6-2 6-3 in the Argentina 2 Masters 1 round of 32 on clay. The upset overturned the form book — Antonio Couvert came in leading the head-to-head 1–0. Diego Junqueira claimed a first win over Antonio Couvert in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-29 | Argentina 1 Masters 1 | R16 | clay | Antonio Couvert | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.