Kei Nishikori defeated Jeremy Chardy 6-4 6-2 in the Tokyo quarter-final on hard. The result followed the form book — Kei Nishikori came in leading the head-to-head 6–2, defending last year's quarter-final. Kei Nishikori extended the head-to-head to 7–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-12-31 | Brisbane | SF | hard | Kei Nishikori | 6-2 6-2 |
| 2017-05-29 | Roland Garros | R64 | clay | Kei Nishikori | 6-3 6-0 7-6 |
| 2017-01-16 | Australian Open | R64 | hard | Kei Nishikori | 6-3 6-4 6-3 |
| 2016-04-18 | Barcelona | R16 | clay | Kei Nishikori | 6-3 7-5 |
| 2015-11-02 | Paris Masters | R32 | hard | Kei Nishikori | 7-6 6-7 6-1 |
| 2013-05-12 | Rome Masters | R32 | clay | Jeremy Chardy | 6-4 6-1 |
| 2012-02-27 | Acapulco | R16 | hard | Jeremy Chardy | 1-6 7-6 6-0 |
| 2011-03-23 | Miami Masters | R128 | hard | Kei Nishikori | 7-6 6-2 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Nishikori K.: 5 days rest · 2 matches, 60 games (7d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About