Head to head
0
Hard
1
1
Grass
0
1
Carpet
0
Butch Walts's wins on the left · Allan Stone's on the right · bar lengths share one scale
All meetings (3)
| 1978 | Maui | Hard | R32 | Allan Stone | 6-4 6-2 |
| 1977 | Brisbane | Grass | R32 | Butch Walts | 4-6 6-3 9-7 |
| 1976 | Los Angeles | Carpet | R64 | Butch Walts | 7-5 6-3 |
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.