01/By surface
each with its own count, at equal weight
Hard
2-0
S.W. leads 2-0 in 2 meetings on hard
Clay
Never on clay
no meeting on this surface
Grass
Never on grass
no meeting on this surface
02/Every meeting
2 rows, newest first
| Date | Tournament | Surface | Round | Winner | Score, winner first | Ranks, S.W. first |
|---|---|---|---|---|---|---|
| Feb 24, 2021 | Singapore OpenATP250 | hard | 1st round | Kwon S.W. | 4-6, 6-3, 6-4 | 81 v 219 |
| Sep 1, 2020 | US OpenGrand Slam, best of 5 | hard | 1st round | Kwon S.W. | 3-6, 7-6, 6-1, 6-2 | 73 v 187 |
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. Kwon S.W. and Kwiatkowski T.S. each carry the table against every opponent faced.