Head to head
1
Hard
0
1
Carpet
2
Erik Van Dillen's wins on the left · Geoff Masters's on the right · bar lengths share one scale
All meetings (4)
| 1977 | Carlsbad | Hard | R32 | Erik Van Dillen | 6-4 5-7 7-6 |
| 1975 | San Francisco | Carpet | R32 | Geoff Masters | 7-6(6) 6-2 |
| 1975 | Dayton | Carpet | SF | Geoff Masters | 6-4 7-6 |
| 1975 | Baltimore | Carpet | R16 | Erik Van Dillen | 7-6 6-3 |
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.