Head to head
1
Hard
0
0
Clay
3
Hernan Gumy's wins on the left · Juan Antonio Marin's on the right · bar lengths share one scale
All meetings (4)
| 2000 | Umag | Clay | R32 | Juan Antonio Marin | 5-7 6-2 6-4 |
| 1999 | San Marino | Clay | QF | Juan Antonio Marin | 4-6 6-3 6-2 |
| 1998 | US Open | Hard | R128 | Hernan Gumy | 6-3 0-6 4-6 6-2 6-1 |
| 1998 | Bologna | Clay | R16 | Juan Antonio Marin | 6-4 6-2 |
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.