Tatsuma Ito defeated Yuichi Sugita 6-2 6-3 in the Japan F11 round of 32 on hard. The upset overturned the form book — Yuichi Sugita came in leading the head-to-head 3–1, but Tatsuma Ito had been the form player, winning 3 of their last 8 on hard. Tatsuma Ito narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-06-13 | Halle | Q2 | grass | Yuichi Sugita | 6-2 6-4 |
| 2008-06-23 | Japan F6 | R32 | carpet | Yuichi Sugita | 6-7(8) 6-3 6-4 |
| 2007-05-07 | Korea Rep F3 | R16 | hard | Tatsuma Ito | 6-3 6-0 |
| 2006-06-19 | Japan F7 | R16 | carpet | Yuichi Sugita | 7-5 6-2 |
Averages over each player's completed matches in the selected window (200 vs 199). 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