Head to head
0
Hard
1
1
Grass
0
5
Carpet
3
Earl Butch Buchholz'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 (10)
| 1969 | Paris | Carpet | QF | Earl Butch Buchholz | 3-6 6-3 6-4 |
| 1968 | Kimberley WCT | Hard | QF | Pierre Barthes | 8-6 |
| 1968 | Newport WCT | Grass | RR | Earl Butch Buchholz | 21-18 21-18 |
| 1968 | Evansville WCT | Carpet | QF | Pierre Barthes | 31-21 |
| 1968 | Bakersfield WCT | Carpet | 3rd/4th | Earl Butch Buchholz | 31-30 31-16 |
| 1968 | Tulsa WCT | Carpet | RR | Earl Butch Buchholz | 31-23 31-17 |
| 1968 | New Orleans WCT | Carpet | RR | Pierre Barthes | 31-25 31-27 |
| 1968 | Houston WCT | Carpet | RR | Pierre Barthes | 31-24 25-31 |
| 1968 | Miami WCT | Carpet | SF | Earl Butch Buchholz | 27-31 31-18 5-3 |
| 1968 | WCT World Cup | Carpet | RR | Earl Butch Buchholz | 31-27 31-25 |
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.