Head to head
Rivalry summary
Ion Tiriac and Nicholas Kalogeropoulos met 3 times on the ATP tour between 1968 and 1973. Ion Tiriac leads the head-to-head 3–0 against Nicholas Kalogeropoulos. By surface, Tiriac leads 2–0 on clay.
2
Clay
0
1
Carpet
0
Ion Tiriac's wins on the left · Nicholas Kalogeropoulos's on the right · bar lengths share one scale
All meetings (3)
| 1973 | Omaha | Carpet | R16 | Ion Tiriac | 3-6 6-3 6-3 |
| 1969 | Roland Garros | Clay | R128 | Ion Tiriac | 6-2 7-5 6-0 |
| 1968 | Catania | Clay | SF | Ion Tiriac | 6-3 6-3 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.