Head to head
1
Clay
0
Zan Guerry's wins on the left · Peter Ristau's on the right · bar lengths share one scale
All meetings (1)
| 1969 | Berlin | Clay | R64 | Zan Guerry | 7-5 6-4 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.