Head to head
0
Hard
1
0
Clay
1
2
Grass
1
0
Carpet
2
Pierre Barthes's wins on the left · Cliff Richey's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1971 | Masters | Hard | RR | Cliff Richey | 6-3 6-3 |
| 1970 | Wembley | Carpet | R16 | Cliff Richey | 7-5 8-6 |
| 1970 | Paris | Carpet | R32 | Cliff Richey | 6-3 6-2 |
| 1970 | US Open | Grass | R32 | Cliff Richey | 7-6 6-3 6-4 |
| 1970 | Bristol | Grass | R32 | Pierre Barthes | 6-4 6-3 |
| 1970 | Brussels | Clay | QF | Cliff Richey | 4-6 6-4 6-0 7-5 |
| 1969 | Queen's Club | Grass | R64 | Pierre Barthes | 6-4 8-10 7-5 |
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.