Head to head
1
Clay
0
1
Grass
0
Dennis Ralston's wins on the left · Allan Stone's on the right · bar lengths share one scale
All meetings (2)
| 1971 | Louisville WCT | Clay | R32 | Dennis Ralston | 6-4 7-6 |
| 1970 | Australian Open | Grass | R16 | Dennis Ralston | 6-2 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.