Gengo Kikuchi defeated Takuto Niki 7-6 4-6 6-3 in the Japan F1 qualifying round on hard. The upset overturned the form book — Takuto Niki came in leading the head-to-head 3–0, but Gengo Kikuchi had been the form player, winning 4 of their last 4 on hard. Gengo Kikuchi claimed a first win over Takuto Niki in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-03-06 | Japan F1 | R16 | hard | Takuto Niki | 6-0 6-4 |
| 2012-03-12 | Japan F1 | R16 | hard | Takuto Niki | 6-1 6-2 |
| 2011-06-13 | Japan F6 | R16 | hard | Takuto Niki | 6-1 6-4 |
Averages over each player's completed matches in the selected window (56 vs 181). 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