Head to head
1
Hard
0
0
Carpet
1
Russell Simpson's wins on the left · Raul Ramirez's on the right · bar lengths share one scale
All meetings (2)
| 1981 | Philadelphia WCT | Carpet | R64 | Raul Ramirez | 6-3 6-3 |
| 1980 | Vienna-2 | Hard | R64 | Russell Simpson | 7-6 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.