Soon Woo Kwon defeated Tatsuma Ito 6-4 6-4 in the Yokohama CH semi-final on hard. The upset overturned the form book — Tatsuma Ito came in leading the head-to-head 1–0. Soon Woo Kwon claimed a first win over Tatsuma Ito in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-06-12 | s Hertogenbosch | Q1 | grass | Tatsuma Ito | 7-6(4) 5-7 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.