01/By surface
each with its own count, at equal weight
Hard
0-1
S.W. leads 1-0 in 1 meeting on hard
Clay
0-1
S.W. leads 1-0 in 1 meeting on clay
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, K. first |
|---|---|---|---|---|---|---|
| Jan 17, 2017 | Australian OpenGrand Slam | hard | 1st round | Hsieh S.W.ret. | 6-3, 2-0 | 144 v 91 |
| Apr 19, 2016 | TEB BNP Paribas Istanbul CupInternational | clay | 1st round | Hsieh S.W. | 6-7, 7-5, 6-1 | 72 v 81 |
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. Knapp K. and Hsieh S.W. each carry the table against every opponent faced.