Head to head
3
Clay
1
Hans Gildemeister's wins on the left · Alvaro Betancur's on the right · bar lengths share one scale
All meetings (4)
| 1980 | Buenos Aires | Clay | R32 | Hans Gildemeister | 6-0 3-0 RET |
| 1980 | Madrid | Clay | R32 | Hans Gildemeister | 6-3 6-1 |
| 1979 | Bogota | Clay | R32 | Alvaro Betancur | 6-2 6-0 |
| 1978 | Cincinnati | Clay | R32 | Hans Gildemeister | 6-2 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.