By surface
| Surface | Lawson Duncan | Simone Colombo |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-08-21 | ATP | San Marino | Quarterfinal | Clay | Lawson Duncan | 7-5 | 6-1 |
| Surface | Lawson Duncan | Simone Colombo |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-08-21 | ATP | San Marino | Quarterfinal | Clay | Lawson Duncan | 7-5 | 6-1 |