Kei Nishikori defeated Mikhail Kukushkin 6-4 6-3 in the Vienna semi-final on hard. The result followed the form book — Kei Nishikori came in leading the head-to-head 8–0. Kei Nishikori extended the head-to-head to 9–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-07-01 | Wimbledon | R16 | grass | Kei Nishikori | 6-3 3-6 6-3 6-4 |
| 2017-05-22 | Geneva | R16 | clay | Kei Nishikori | 6-4 6-3 |
| 2016-03-07 | Indian Wells Masters | R64 | hard | Kei Nishikori | 6-3 6-3 |
| 2016-02-08 | Memphis | QF | hard | Kei Nishikori | 6-2 6-4 |
| 2016-01-04 | Brisbane | R16 | hard | Kei Nishikori | 6-3 6-4 |
| 2012-06-25 | Wimbledon | R128 | grass | Kei Nishikori | 7-5 6-3 6-4 |
| 2012-04-23 | Barcelona | R32 | clay | Kei Nishikori | 6-3 4-6 6-0 |
| 2011-10-31 | Basel | QF | hard | Kei Nishikori | 6-4 5-7 6-4 |
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 198). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About