Mari Tanaka defeated So Jung Kim 6-2 7-5 in the Sydney 25K round of 32 on hard. The upset overturned the form book — So Jung Kim came in leading the head-to-head 2–0. Mari Tanaka claimed a first win over So Jung Kim in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-24 | Goyang 25K | R16 | hard | So Jung Kim | 6-4 6-1 |
| 2007-05-28 | Gunma 25K | R16 | carpet | So Jung Kim | 6-3 4-6 6-3 |
Averages over each player's completed matches in the selected window (3 vs 5). 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