Head to head
1
Clay
0
Heinz Gunthardt's wins on the left · Zoltan Ilin's on the right · bar lengths share one scale
All meetings (2)
| 1979 | Rome | Clay | R64 | Heinz Gunthardt | 6-1 6-4 |
| 1979 | Davis Cup EUR PR: SUI vs YUG | RR | Heinz Gunthardt | 6-4 6-0 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.