By surface
| Surface | Colin Robertson | Lothar Lanz |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-07-21 | ATP | Munich | Round of 64 | Clay | Colin Robertson | 3-6 | 6-3 | 6-1 |
| Surface | Colin Robertson | Lothar Lanz |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-07-21 | ATP | Munich | Round of 64 | Clay | Colin Robertson | 3-6 | 6-3 | 6-1 |