Head to head
1
Hard
2
0
Grass
1
4
Carpet
4
Mark Cox's wins on the left · Stan Smith's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (12)
| 1979 | Vienna | Hard | QF | Stan Smith | 6-4 6-3 |
| 1978 | Milan WCT | Carpet | R32 | Stan Smith | 6-3 6-1 |
| 1976 | Nottingham | Grass | R32 | Stan Smith | 6-3 6-4 |
| 1976 | Barcelona WCT | Carpet | R16 | Mark Cox | 6-3 7-6(2) |
| 1976 | Indianapolis WCT | Carpet | R16 | Stan Smith | 6-1 4-6 6-3 |
| 1975 | Tokyo WCT | Carpet | SF | Stan Smith | 6-3 6-3 |
| 1975 | Atlanta WCT | Carpet | QF | Mark Cox | 6-4 1-6 7-6(3) |
| 1975 | Washington WCT | Carpet | SF | Mark Cox | 7-6(5) 2-6 6-3 |
| 1975 | San Antonio WCT | Carpet | R16 | Stan Smith | 6-2 6-4 |
| 1974 | Lakeway WCT | Hard | R16 | Mark Cox | 6-1 7-6 |
| 1969 | London-4 | Carpet | SF | Mark Cox | 10-8 4-6 6-4 |
| 1968 | London-3 | Hard | F | Stan Smith | 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.