Duck Hee Lee defeated Cheng Yu Yu 6-4 6-4 in the China F6 round of 16 on hard. The result followed the form book — Duck Hee Lee came in leading the head-to-head 2–0. Duck Hee Lee extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-11-20 | Indonesia F7 | R16 | hard | Duck Hee Lee | 6-3 6-2 |
| 2015-08-03 | China F12 | R32 | hard | Duck Hee Lee | 6-2 7-6(4) |
Averages over each player's completed matches in the selected window (200 vs 91). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About