Head to head
1
Clay
0
1
Carpet
0
Jim Delaney's wins on the left · Onny Parun's on the right · bar lengths share one scale
All meetings (2)
| 1977 | San Francisco | Carpet | R64 | Jim Delaney | 6-3 7-6 |
| 1975 | Boston | Clay | R64 | Jim Delaney | 6-1 4-6 7-6 |
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.