Head to head
0
Hard
1
1
Clay
1
1
Grass
2
Onny Parun's wins on the left · Ray Ruffels's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (6)
| 1974 | Christchurch | Hard | SF | Ray Ruffels | 6-3 5-7 6-2 |
| 1974 | Tokyo-2 | Clay | R32 | Onny Parun | 6-4 6-3 |
| 1974 | Auckland | Grass | R16 | Onny Parun | 6-2 3-6 6-3 6-2 |
| 1970 | Haverford | Grass | R16 | Ray Ruffels | 6-4 7-6 |
| 1969 | St. Petersburg | Clay | R32 | Ray Ruffels | 6-1 6-2 |
| 1968 | Brisbane | Grass | R16 | Ray Ruffels | 6-4 6-4 |
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.