Head to head
1
Carpet
2
Allan Stone's wins on the left · Onny Parun's on the right · bar lengths share one scale
All meetings (3)
| 1976 | Washington WCT | Carpet | QF | Onny Parun | 5-7 6-1 6-4 |
| 1975 | Los Angeles | Carpet | R16 | Allan Stone | 6-3 6-4 |
| 1973 | Philadelphia WCT | Carpet | R32 | Onny Parun | 6-3 1-6 7-6(6) |
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.