01/By surface
each with its own count, at equal weight
Hard
2-0
C. leads 2-0 in 2 meetings 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
4 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, C. first |
|---|---|---|---|---|---|---|
| Apr 23, 2018 | Istanbul CupInternational | clay | 1st round | Mchale C. | 7-6, 4-6, 6-3 | 88 v 65 |
| Aug 29, 2016 | US OpenGrand Slam | hard | 1st round | Mchale C. | 6-2, 6-2 | 55 v 96 |
| May 3, 2015 | Mutua Madrid OpenPremier | clay | 1st round | Mchale C. | 6-3, 6-2 | 64 v 39 |
| Sep 17, 2014 | Kia Korea OpenInternational | hard | 2nd round | Mchale C. | 6-1, 4-6, 6-3 | 57 v 54 |
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. Mchale C. and Barthel M. each carry the table against every opponent faced.