Ji Sung Nam defeated Shuichi Sekiguchi 6-1 6-1 in the Ningbo CH round of 64 on hard. The upset overturned the form book — Shuichi Sekiguchi came in leading the head-to-head 3–0. Ji Sung Nam claimed a first win over Shuichi Sekiguchi in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-08-12 | China F7 | SF | hard | Shuichi Sekiguchi | 5-7 6-1 6-4 |
| 2013-05-27 | Korea F4 | SF | hard | Shuichi Sekiguchi | 6-3 6-3 |
| 2012-04-09 | Vietnam F2 | R16 | hard | Shuichi Sekiguchi | 6-4 6-0 |
Averages over each player's completed matches in the selected window (145 vs 156). 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