Head to head
3
Hard
1
0
Clay
1
1
Grass
0
4
Carpet
1
Stan Smith's wins on the left · John Alexander's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (11)
| 1981 | Las Vegas | Hard | R16 | Stan Smith | 6-4 6-7 7-6 |
| 1976 | Boston | Clay | R32 | John Alexander | 6-7 7-6 6-3 |
| 1973 | WCT Finals | Carpet | QF | Stan Smith | 6-4 6-2 6-1 |
| 1973 | Gothenburg WCT | Carpet | F | Stan Smith | 5-7 6-4 6-2 |
| 1973 | Munich WCT | Carpet | SF | Stan Smith | 6-1 6-2 |
| 1973 | St. Louis WCT | Carpet | QF | Stan Smith | 4-6 6-0 7-6(1) |
| 1973 | Richmond WCT | Carpet | QF | John Alexander | 4-6 6-3 6-4 |
| 1973 | Carlsbad WCT | Hard | QF | Stan Smith | 6-1 6-2 |
| 1973 | Miami WCT | Hard | QF | John Alexander | 6-4 6-3 |
| 1970 | Melbourne | Grass | R16 | Stan Smith | 14-12 13-11 |
| 1968 | Salisbury | Hard | R64 | Stan Smith | 6-3 6-3 |
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.