Head to head
0
Hard
1
1
Clay
0
Lawson Duncan's wins on the left · Cassio Motta's on the right · bar lengths share one scale
All meetings (2)
| 1989 | Charleston | Clay | QF | Lawson Duncan | 6-2 6-0 |
| 1987 | Guaruja | Hard | R32 | Cassio Motta | 6-4 6-1 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.