Head to head
1
Clay
0
1
Grass
0
Ion Tiriac's wins on the left · Terry Ryan's on the right · bar lengths share one scale
All meetings (2)
| 1972 | Gstaad | Clay | R32 | Ion Tiriac | 6-1 6-2 |
| 1969 | US Open | Grass | R128 | Ion Tiriac | 9-7 7-5 5-7 8-6 |
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.