By surface
| Surface | Jakob Hlasek | Ruben Alvarenga |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-07-21 | ATP | Davis Cup WG PO: SUI vs PAR | Round Robin | Clay | Jakob Hlasek | 6-2 | 6-2 |
| Surface | Jakob Hlasek | Ruben Alvarenga |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-07-21 | ATP | Davis Cup WG PO: SUI vs PAR | Round Robin | Clay | Jakob Hlasek | 6-2 | 6-2 |