Sang Woo Noh defeated Jung Woong Na 5-7 6-2 6-2 in the Korea F2 round of 16 on hard. The upset overturned the form book — Jung Woong Na came in leading the head-to-head 2–0. Sang Woo Noh claimed a first win over Jung Woong Na in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-03 | Korea F5 | R16 | hard | Jung Woong Na | 7-5 6-1 |
| 2013-04-29 | Korea F1 | QF | hard | Jung Woong Na | 7-6(5) 6-3 |
Averages over each player's completed matches in the selected window (21 vs 60). 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