01/By surface
each with its own count, at equal weight
Hard
0-1
H. leads 1-0 in 1 meeting on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
1 row, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, J. first |
|---|---|---|---|---|---|---|
| Aug 14, 2018 | Western & Southern Financial Group MastersMasters 1000 | hard | 1st round | Chung H. | 2-6, 6-1, 6-2 | 20 v 25 |
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. Sock J. and Chung H. each carry the table against every opponent faced.