Pedro Braga defeated Martin Vassallo Arguello 6-4 6-3 in the Brazil F7 round of 16 on clay. The upset overturned the form book — Martin Vassallo Arguello came in leading the head-to-head 1–0. Pedro Braga claimed a first win over Martin Vassallo Arguello in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-08-03 | Ecuador F1 | R16 | clay | Martin Vassallo Arguello | 3-6 6-1 7-6 |
Averages over each player's completed matches in the selected window (1 vs 123). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About