Robin Kern defeated Ji Sung Nam 6-3 3-6 7-5 in the Tianjin CH round of 32 on hard. The upset overturned the form book — Ji Sung Nam came in leading the head-to-head 1–0. Robin Kern claimed a first win over Ji Sung Nam in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-04-09 | Vietnam F2 | R32 | hard | Ji Sung Nam | 7-6(3) 6-2 |
Averages over each player's completed matches in the selected window (71 vs 178). 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