Head to head
1
Hard
0
0
Grass
1
1
Carpet
0
Mike Estep's wins on the left · Thomaz Koch's on the right · bar lengths share one scale
All meetings (3)
| 1977 | Los Angeles-1 | Carpet | R64 | Mike Estep | 2-6 6-1 6-4 |
| 1972 | Manchester | Grass | SF | Thomaz Koch | 6-2 10-8 |
| 1968 | Salisbury | Hard | R64 | Mike Estep | 1-6 6-4 8-6 |
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.