By surface
| Surface | Lawson Duncan | Gustavo Giussani |
|---|---|---|
| Clay | 1 | 2 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-08-21 | ATP | San Marino | Round of 16 | Clay | Lawson Duncan | 7-6 | 6-7 | 6-3 | ||
| 1989-08-14 | ATP | St. Vincent | Round of 32 | Clay | Gustavo Giussani | 3-6 | 0-6 | |||
| 1989-08-07 | ATP | Prague | Round of 32 | Clay | Gustavo Giussani | 7-5 | 0-6 | 5-7 |