Duck Hee Lee defeated Issei Okamura 5-7 6-1 6-3 in the M15 Daegu 1 round of 32 on hard. Duck Hee Lee extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-08-25 | M15 Changwon 1 | R16 | hard | Issei Okamura | 6-2 3-6 7-5 |
| 2015-06-08 | Japan F6 | R16 | hard | Duck Hee Lee | 6-1 6-4 |
Averages over each player's completed matches in the selected window (161 vs 103). 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