By surface
| Surface | Hiebler | Kassim Athman |
|---|---|---|
| Carpet | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-01-05 | WTA | Bremen | Quarterfinal | Carpet | Annette Coe | 3-6 | 4-6 |
| Surface | Hiebler | Kassim Athman |
|---|---|---|
| Carpet | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-01-05 | WTA | Bremen | Quarterfinal | Carpet | Annette Coe | 3-6 | 4-6 |