Erika Sema defeated Na Lae Han 6-1 5-7 6-1 in the Tsukuba 25K qualifying round on hard. The upset overturned the form book — Na Lae Han came in leading the head-to-head 1–0. Erika Sema claimed a first win over Na Lae Han in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-18 | Seoul $50K | R16 | hard | Na Lae Han | 6-4 5-7 6-3 |
Averages over each player's completed matches in the selected window (199 vs 200). 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