Head to head
0
Clay
1
0
Grass
1
1
Carpet
2
John Lloyd's wins on the left · Stan Smith's on the right · bar lengths share one scale
All meetings (5)
| 1978 | Wembley | Carpet | R32 | Stan Smith | 6-3 6-4 |
| 1978 | Denver | Carpet | R16 | Stan Smith | 6-3 6-4 |
| 1976 | Los Angeles | Carpet | R16 | John Lloyd | 6-4 3-6 6-4 |
| 1974 | Washington-2 | Clay | R32 | Stan Smith | 6-7 6-3 6-4 |
| 1974 | Nottingham | Grass | R32 | Stan Smith | 6-3 6-2 |
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.