Head to head
3
Clay
3
Luiz Mattar's wins on the left · Horacio de la Pena's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1994 | Bologna | Clay | R32 | Horacio de la Pena | 6-4 6-3 |
| 1993 | Santiago | Clay | R16 | Horacio de la Pena | 3-6 6-3 6-4 |
| 1993 | Palermo | Clay | R32 | Luiz Mattar | 6-2 2-6 6-4 |
| 1992 | Casablanca | Clay | R16 | Luiz Mattar | 5-7 6-2 6-2 |
| 1988 | Boston | Clay | R32 | Horacio de la Pena | 6-4 6-3 |
| 1987 | Barcelona | Clay | R32 | Luiz Mattar | 6-3 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.