Head to head
1
Hard
2
1
Clay
0
1
Grass
1
2
Carpet
1
Marty Riessen'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 (9)
| 1973 | Denver WCT | Carpet | R32 | Marty Riessen | 6-3 6-2 |
| 1973 | Copenhagen WCT | Carpet | R16 | Marty Riessen | 4-6 6-3 6-3 |
| 1971 | South Orange | Grass | SF | Pierre Barthes | 1-6 7-6 6-4 6-4 |
| 1969 | Tucson | Hard | QF | Marty Riessen | 7-5 2-6 6-1 |
| 1969 | Chicago | Carpet | QF | Pierre Barthes | 8-5 |
| 1969 | Portschach | Clay | RR | Marty Riessen | 6-4 6-0 |
| 1969 | Boston-1 | Hard | R16 | Pierre Barthes | 3-6 6-3 6-4 |
| 1968 | Port Elizabeth WCT | Hard | R16 | Pierre Barthes | 7-5 |
| 1968 | Newport WCT | Grass | RR | Marty Riessen | 21-10 21-14 |
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.