Head to head
1
Clay
0
0
Grass
1
Charles Owens's wins on the left · Jun Kamiwazumi's on the right · bar lengths share one scale
All meetings (2)
| 1973 | Newport | Grass | R64 | Jun Kamiwazumi | 6-1 6-4 |
| 1972 | Indianapolis | Clay | R64 | Charles Owens | 6-3 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.