Head to head
0
Hard
1
5
Carpet
2
Dennis Ralston's wins on the left · Pierre Barthes's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 1969 | Las Vegas | Hard | R32 | Pierre Barthes | 6-3 1-0 RET |
| 1968 | Baltimore WCT | Carpet | QF | Dennis Ralston | 11-9 |
| 1968 | Buffalo WCT | Carpet | SF | Dennis Ralston | 31-18 31-19 |
| 1968 | Evansville WCT | Carpet | 3rd/4th | Dennis Ralston | 31-28 |
| 1968 | Bakersfield WCT | Carpet | QF | Pierre Barthes | 31-18 |
| 1968 | Orlando WCT | Carpet | RR | Dennis Ralston | 31-13 31-16 |
| 1968 | WCT World Cup | Carpet | RR | Dennis Ralston | 31-27 31-29 |
| 1968 | Sydney WCT | Carpet | RR | Pierre Barthes | 83-70 |
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.