Head to head
2
Carpet
0
Geoff Masters's wins on the left · Mike Cahill's on the right · bar lengths share one scale
All meetings (2)
| 1980 | Dayton | Carpet | R32 | Geoff Masters | 6-4 7-6 |
| 1980 | Washington-1 | Carpet | R32 | Geoff Masters | 6-1 4-6 6-2 |
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.