Head to head
1
Clay
2
Michael Westphal's wins on the left · Heinz Gunthardt's on the right · bar lengths share one scale
All meetings (3)
| 1985 | Hamburg | Clay | R64 | Michael Westphal | 1-6 6-2 6-2 |
| 1983 | Davis Cup EUR F: FRG vs SUI | Clay | RR | Heinz Gunthardt | 6-2 6-2 6-8 2-6 6-2 |
| 1982 | Hamburg | Clay | R64 | Heinz Gunthardt | 6-4 6-1 |
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.