Head to head
0
Hard
1
1
Clay
5
John Yuill's wins on the left · Wojtek Fibak's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (7)
| 1980 | Stuttgart-2 | Clay | R32 | Wojtek Fibak | 6-3 6-3 |
| 1977 | Vienna | Hard | R16 | Wojtek Fibak | 6-3 6-0 |
| 1977 | Bastad | Clay | R16 | Wojtek Fibak | 6-1 5-7 6-2 |
| 1977 | Dusseldorf | Clay | R16 | Wojtek Fibak | 4-6 6-4 6-1 |
| 1976 | Hamburg | Clay | R64 | Wojtek Fibak | 6-2 6-4 |
| 1975 | US Open | Clay | R128 | Wojtek Fibak | 6-3 6-0 |
| 1974 | Tehran | Clay | R64 | John Yuill | 6-3 4-6 6-2 |
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.