By surface
| Surface | Karl Meiler | John McDonald |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-05-11 | ATP | Berlin | Round of 64 | Clay | Karl Meiler | 6-0 | 6-2 |
| Surface | Karl Meiler | John McDonald |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-05-11 | ATP | Berlin | Round of 64 | Clay | Karl Meiler | 6-0 | 6-2 |