01/By surface
each with its own count, at equal weight
Hard
3-0
S. leads 3-0 in 3 meetings on hard
Clay
Never on clay
no meeting on this surface
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, S. first |
|---|---|---|---|---|---|---|
| Oct 8, 2019 | Tianjin OpenInternational | hard | 1st round | Zheng S. | 7-6, 6-2 | 38 v 363 |
| Sep 17, 2019 | Guangzhou OpenInternational | hard | 1st round | Zheng S. | 6-7, 7-6, 6-1 | 37 v 329 |
| Sep 9, 2014 | Prudential Hong Kong Tennis OpenInternational | hard | 1st round | Zheng S. | 7-6, 7-5 | 102 v 137 |
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. Zheng S. and Duan Y.Y. each carry the table against every opponent faced.