By surface
| Surface | Heinz Gunthardt | Dan Cassidy |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1984-11-19 | ATP | Toulouse | Round of 32 | Hard | Heinz Gunthardt | 6-2 | 7-6 |
| Surface | Heinz Gunthardt | Dan Cassidy |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1984-11-19 | ATP | Toulouse | Round of 32 | Hard | Heinz Gunthardt | 6-2 | 7-6 |