Juan Balcells defeated Jose Alejos 6-2 6-1 in the Spain 6 Masters 1 round of 16 on clay. The upset overturned the form book — Jose Alejos 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 |
|---|---|---|---|---|---|
| 1997-01-31 | Spain 2 Masters 3 | R32 | clay | Jose Alejos | 6-1 6-4 |
| 1996-05-10 | Spain 4 Masters 4 | SF | clay | Juan Balcells | 6-4 6-1 |
| 1995-01-06 | Spain 1 Masters 3 | R32 | clay | Jose Alejos | 6-1 6-2 |
| 1995-01-06 | Spain 1 Masters 4 | R16 | clay | Juan Balcells | 6-2 6-4 |
| 1992-07-13 | Spain 6 Masters 2 | R32 | clay | Jose Alejos | 7-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.