Head to head
1
Clay
1
Trevor Allan's wins on the left · Stefan Simonsson's on the right · bar lengths share one scale
All meetings (2)
| 1984 | Rome | Clay | R64 | Stefan Simonsson | 6-0 6-4 |
| 1983 | Roland Garros | Clay | R128 | Trevor Allan | 6-4 6-2 6-0 |
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.