Head to head
0
Clay
2
1
Carpet
0
Stan Smith's wins on the left · Jun Kamiwazumi's on the right · bar lengths share one scale
All meetings (3)
| 1975 | Tokyo WCT | Carpet | R16 | Stan Smith | 6-3 6-2 |
| 1974 | Boston | Clay | R32 | Jun Kamiwazumi | 5-7 6-2 7-5 |
| 1974 | Roland Garros | Clay | R128 | Jun Kamiwazumi | 3-6 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.