Head to head
1
Hard
0
1
Grass
0
Jim McManus's wins on the left · Dan Birchmore's on the right · bar lengths share one scale
All meetings (2)
| 1972 | US Open | Grass | R128 | Jim McManus | 2-6 4-6 6-1 6-4 6-3 |
| 1972 | Columbus | Hard | R32 | Jim McManus | 2-6 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.