Head to head
1
Hard
0
0
Clay
1
0
Grass
1
0
Carpet
1
John Lloyd's wins on the left · Buster C. Mottram's on the right · bar lengths share one scale
All meetings (4)
| 1980 | Wimbledon | Grass | R128 | Buster C. Mottram | 6-4 6-2 6-2 |
| 1978 | US Open | Hard | R128 | John Lloyd | 6-1 3-6 6-1 |
| 1978 | Hamburg | Clay | R16 | Buster C. Mottram | 6-4 7-5 |
| 1975 | Munich WCT | Carpet | R16 | Buster C. Mottram | 5-7 6-4 7-6(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.