Duck Hee Lee defeated Ze Zhang 6-3 5-7 6-0 in the Zhangjiagang CH round of 32 on hard. The result followed the form book — Duck Hee Lee came in leading the head-to-head 1–0, defending last year's round of 32. Duck Hee Lee extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-01-15 | Australian Open | Q1 | hard | Duck Hee Lee | 6-3 3-6 6-3 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (136 vs 78). ATP, WTA & Challenger.