Juan Balcells defeated Jordi Mas 7-6 6-3 in the Spain 3 Masters 1 round of 32 on clay. The upset overturned the form book — Jordi Mas came in leading the head-to-head 3–2, but Juan Balcells had been the form player, winning 6 of their last 10 on clay. Juan Balcells narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-10-17 | Spain 9 Masters 3 | R16 | clay | Juan Balcells | 6-4 6-3 |
| 1997-02-28 | Spain 3 Masters 1 | R32 | clay | Jordi Mas | 7-6 6-7 6-4 |
| 1996-03-01 | Spain 3 Masters 4 | R32 | clay | Juan Balcells | 6-3 6-3 |
| 1994-08-12 | Spain 7 Masters 1 | QF | clay | Jordi Mas | 7-6 6-4 |
| 1994-06-10 | Spain 5 Masters 4 | QF | clay | Jordi Mas | 6-3 6-3 |
Averages over each player's completed matches in the selected window (87 vs 2). 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. About