By surface
| Surface | Thomas Muster | Lawson Duncan |
|---|---|---|
| Clay | 4 | 0 |
All meetings (4)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1988-09-19 | ATP | Bari | Semifinal | Clay | Thomas Muster | 6-2 | 6-4 | |||
| 1988-08-08 | ATP | Prague | Quarterfinal | Clay | Thomas Muster | 6-2 | 6-1 | |||
| 1988-07-04 | ATP | Boston | Final | Clay | Thomas Muster | 6-2 | 6-2 | |||
| 1988-05-02 | ATP | Forest Hills | Round of 32 | Clay | Thomas Muster | 6-0 | 6-0 |