01/By surface
each with its own count, at equal weight
Hard
1-0
C. leads 1-0 in 1 meeting on hard
Clay
2-0
C. leads 2-0 in 2 meetings on clay
Grass
Never on grass
no meeting on this surface
02/Every meeting
3 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, C. first |
|---|---|---|---|---|---|---|
| May 10, 2026 | Internazionali BNL d'ItaliaMasters 1000 | clay | 3rd round | Ruud C. | 6-3, 6-4 | 25 v 13 |
| Aug 9, 2023 | Canadian OpenMasters 1000 | hard | 2nd round | Ruud C. | 7-6, 6-4 | 5 v 36 |
| Jul 21, 2022 | Suisse Open GstaadATP250 | clay | 2nd round | Ruud C. | 6-3, 6-4 | 5 v 65 |
A record, never a share of meetings. Main-draw singles since 2013; a meeting ended by retirement is counted with the sets that were played and marked; a walkover is listed and counted in neither column. Ruud C. and Lehecka J. each carry the table against every opponent faced.