Head to head
1
Clay
2
Nicola Spear's wins on the left · Bob Carmichael's on the right · bar lengths share one scale
All meetings (3)
| 1975 | Manila | Clay | R32 | Bob Carmichael | 6-4 6-3 |
| 1973 | Florence | Clay | R32 | Bob Carmichael | 6-3 6-4 |
| 1970 | Houston | Clay | QF | Nicola Spear | 6-4 2-6 6-4 |
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.