Duck Hee Lee defeated Luca Castelnuovo 6-3 6-3 in the M15 Tianjin 4 round of 16 on hard. Duck Hee Lee extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-02-28 | M15 Maanshan 1 | QF | hard | Luca Castelnuovo | 4-6 6-3 7-6(3) |
| 2023-09-06 | M25 Hong Kong 2 | R32 | hard | Duck Hee Lee | 3-6 6-4 7-5 |
Averages over each player's completed matches in the selected window (120 vs 168). 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