Head to head
0
Hard
1
0
Clay
1
1
Grass
0
1
Carpet
0
Tim Gullikson's wins on the left · Mike Cahill's on the right · bar lengths share one scale
All meetings (4)
| 1979 | Stowe | Hard | SF | Mike Cahill | 6-4 6-3 |
| 1979 | Wimbledon | Grass | R128 | Tim Gullikson | 6-4 6-2 6-4 |
| 1977 | Hampton | Carpet | R16 | Tim Gullikson | 6-4 6-3 |
| 1976 | Bangalore | Clay | R16 | Mike Cahill | 4-6 6-3 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.