Head to head
1
Hard
0
1
Clay
0
1
Grass
0
Onny Parun's wins on the left · Lenny Schloss's on the right · bar lengths share one scale
All meetings (3)
| 1971 | Caracas | Hard | R32 | Onny Parun | 6-2 6-3 |
| 1970 | South Orange | Grass | R32 | Onny Parun | 6-3 7-6 |
| 1970 | St. Petersburg | Clay | R32 | Onny Parun | 6-2 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.