Sebastian Prieto defeated Jose Arnedo 6-2 6-4 in the Chile 1 Masters 1 qualifying round on clay. The upset overturned the form book — Jose Arnedo came in leading the head-to-head 1–0. Sebastian Prieto claimed a first win over Jose Arnedo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1994-07-16 | Argentina 2 Masters 4 | R16 | clay | Jose Arnedo | 6-4 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.