Head to head
1
Clay
0
0
Grass
1
William Durham's wins on the left · Bob Giltinan's on the right · bar lengths share one scale
All meetings (2)
| 1974 | Melbourne | Clay | R32 | William Durham | 7-5 4-6 9-7 |
| 1973 | Australian Open | Grass | R32 | Bob Giltinan | 7-6 6-2 6-0 |
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.