Head to head
2
Clay
4
Karel Novacek'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)
| 1992 | Estoril | Clay | R16 | Horacio de la Pena | 7-6(3) 6-2 |
| 1991 | Prague | Clay | QF | Karel Novacek | 6-0 6-4 |
| 1990 | Kitzbuhel | Clay | F | Horacio de la Pena | 6-4 7-6 2-6 6-2 |
| 1989 | Gstaad | Clay | R16 | Horacio de la Pena | 6-4 5-7 7-5 |
| 1987 | Davis Cup WG PO: TCH vs ARG | Clay | RR | Karel Novacek | 6-4 7-5 |
| 1986 | Hamburg | Clay | R64 | Horacio de la Pena | 7-6 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.