Head to head
1
Hard
0
2
Clay
1
Hernan Gumy's wins on the left · Nicolas Massu's on the right · bar lengths share one scale
All meetings (5)
| 2001 | Buenos Aires | Clay | R32 | Hernan Gumy | 6-3 6-1 |
| 2000 | Bastad | Clay | R32 | Nicolas Massu | 6-3 6-4 |
| 2000 | Davis Cup G1 SF: CHI vs ARG | Hard | RR | Nicolas Massu | W/O |
| 2000 | Bogota | Clay | R32 | Hernan Gumy | 6-4 6-1 |
| 2000 | Memphis | Hard | R32 | Hernan Gumy | 7-5 7-6(5) |
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.