Head to head
1
Hard
0
4
Clay
0
3
Grass
0
Bjorn Borg's wins on the left · Onny Parun's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 1977 | US Open | Clay | R32 | Bjorn Borg | 6-1 6-3 |
| 1974 | Masters | Grass | RR | Bjorn Borg | 3-6 6-3 10-8 |
| 1974 | Adelaide | Grass | F | Bjorn Borg | 6-4 6-4 3-6 6-2 |
| 1974 | Toronto-2 | Clay | R16 | Bjorn Borg | 6-4 6-3 |
| 1974 | Bastad | Clay | SF | Bjorn Borg | 7-6 6-4 6-4 |
| 1974 | Tucson | Hard | R64 | Bjorn Borg | 6-4 2-6 6-3 |
| 1974 | Auckland | Grass | F | Bjorn Borg | 6-4 6-3 6-1 |
| 1972 | Davis Cup EUR R1: SWE vs NZL | Clay | RR | Bjorn Borg | 4-6 3-6 6-3 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.