Davis Cup WG SF: BEL vs ARG 1981 ATP
Round robin
| Winner | Loser | Score | |
|---|---|---|---|
| Ulrich Pinner | d. | Thomaz Koch | 6-3 6-3 6-2 |
| Carlos Kirmayr | d. | Peter Elter | 7-5 6-2 3-6 6-2 |
| Carlos Kirmayr | d. | Ulrich Pinner | 6-2 11-13 21-19 6-3 |
| Peter Elter | d. | Thomaz Koch | 7-5 7-5 6-3 |
| Winner | Loser | Score | |
|---|---|---|---|
| Ulrich Pinner | d. | Thomaz Koch | 6-3 6-3 6-2 |
| Carlos Kirmayr | d. | Peter Elter | 7-5 6-2 3-6 6-2 |
| Carlos Kirmayr | d. | Ulrich Pinner | 6-2 11-13 21-19 6-3 |
| Peter Elter | d. | Thomaz Koch | 7-5 7-5 6-3 |