By surface
| Surface | Robert Reininger | Michael Mortensen |
|---|---|---|
| Clay | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981-06-12 | ATP | Davis Cup EUR QF: AUT vs DEN | Round Robin | Clay | Michael Mortensen | 3-6 | 4-6 | 3-6 |
| Surface | Robert Reininger | Michael Mortensen |
|---|---|---|
| Clay | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1981-06-12 | ATP | Davis Cup EUR QF: AUT vs DEN | Round Robin | Clay | Michael Mortensen | 3-6 | 4-6 | 3-6 |