Head to head
0
Clay
1
1
Grass
0
Ron Holmberg's wins on the left · Pierre Barthes's on the right · bar lengths share one scale
All meetings (2)
| 1969 | Portschach | Clay | RR | Pierre Barthes | 2-6 6-4 6-3 |
| 1968 | Queen's Club | Grass | R64 | Ron Holmberg | 6-4 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.