Head to head
0
Hard
2
0
Clay
1
0
Grass
2
2
Carpet
2
Dennis Ralston's wins on the left · Roy Emerson's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (10)
| 1971 | Bristol WCT | Grass | R16 | Roy Emerson | 3-6 7-6 7-6 |
| 1971 | Tehran WCT | Clay | R16 | Roy Emerson | W/O |
| 1971 | Rome WCT | Clay | R16 | Roy Emerson | 6-4 3-6 6-4 |
| 1971 | WCT Aetna World Cup | Carpet | RR | Dennis Ralston | 6-1 6-7 7-6 |
| 1971 | Australian Open | Grass | R16 | Roy Emerson | 6-3 2-6 6-3 6-4 |
| 1970 | Tucson | Hard | SF | Roy Emerson | 6-7 7-6 6-4 |
| 1970 | St. Louis | Hard | QF | Roy Emerson | 6-4 6-4 |
| 1969 | New York-2 | Carpet | RR | Roy Emerson | 8-3 |
| 1969 | Japanese Championships | Carpet | RR | Roy Emerson | 2-6 6-5 6-5 |
| 1969 | Oakland | Carpet | R16 | Dennis Ralston | 6-4 6-8 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.