Yuichi Ito defeated Hsin Han Lee 6-0 6-2 in the Japan F6 qualifying round on carpet. The upset overturned the form book — Hsin Han Lee came in leading the head-to-head 2–1. Yuichi Ito narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-06-28 | Japan F8 | QF | clay | Hsin Han Lee | 7-5 6-1 |
| 2009-10-12 | Japan F8 | R16 | hard | Yuichi Ito | 3-6 7-5 6-1 |
| 2008-06-16 | Japan F5 | R32 | carpet | Hsin Han Lee | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.