Head to head
4
Hard
0
3
Carpet
1
Stan Smith's wins on the left · Mike Cahill's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (8)
| 1981 | Cleveland | Hard | R32 | Stan Smith | 6-7 6-4 6-3 |
| 1980 | Tampa | Hard | SF | Stan Smith | 6-3 6-1 |
| 1979 | Philadelphia WCT | Carpet | R64 | Stan Smith | 6-1 6-1 |
| 1978 | San Francisco | Carpet | R64 | Mike Cahill | 6-3 6-4 |
| 1978 | Washington-1 | Carpet | R16 | Stan Smith | 7-6 6-1 |
| 1977 | Los Angeles-2 | Hard | R64 | Stan Smith | 1-6 6-3 6-0 |
| 1977 | Los Angeles-1 | Carpet | R16 | Stan Smith | 6-4 6-4 |
| 1976 | Palm Springs | Hard | R64 | Stan Smith | 6-4 7-5 |
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.