Head to head
2
Hard
0
1
Grass
2
Russell Simpson's wins on the left · Johan Kriek's on the right · bar lengths share one scale
All meetings (5)
| 1985 | Queen's Club | Grass | QF | Johan Kriek | 6-4 7-6 |
| 1982 | Bristol | Grass | R16 | Russell Simpson | 7-5 6-7 6-1 |
| 1981 | Wimbledon | Grass | R32 | Johan Kriek | 7-6 3-6 6-2 7-5 |
| 1980 | Columbus | Hard | R32 | Russell Simpson | 6-3 6-7 6-2 |
| 1979 | Atlanta | Hard | R32 | Russell Simpson | 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.