Head to head
1
Clay
1
1
Carpet
0
Ricardo Acuna's wins on the left · Jairo Velasco Sr.'s on the right · bar lengths share one scale
All meetings (3)
| 1982 | Itaparica | Carpet | R32 | Ricardo Acuna | 4-6 6-3 7-5 |
| 1981 | Davis Cup SAM F: COL vs CHI | Clay | RR | Jairo Velasco Sr. | 4-6 3-6 15-13 6-4 6-1 |
| 1980 | Bogota | Clay | R32 | Ricardo Acuna | 3-6 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.