Shuichi Sekiguchi defeated Duck Hee Lee 6-3 6-0 in the China F7 qualifying round on hard. The upset overturned the form book — Duck Hee Lee came in leading the head-to-head 2–0, but Shuichi Sekiguchi had been the form player, winning 8 of their last 10 on hard. Shuichi Sekiguchi claimed a first win over Duck Hee Lee in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-03-21 | Japan F3 | SF | hard | Duck Hee Lee | 7-5 6-3 |
| 2015-04-06 | Indonesia F2 | F | hard | Duck Hee Lee | 6-1 3-0 |
Averages over each player's completed matches in the selected window (200 vs 200). 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