Kei Nishikori defeated Alexandr Dolgopolov 7-5 6-0 in the Barcelona quarter-final on clay. The result followed the form book — Kei Nishikori came in leading the head-to-head 4–1, defending the title. Kei Nishikori extended the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-13 | Buenos Aires | F | clay | Alexandr Dolgopolov | 7-6(4) 6-4 |
| 2016-03-21 | Miami Masters | R32 | hard | Kei Nishikori | 6-2 6-2 |
| 2015-02-23 | Acapulco | QF | hard | Kei Nishikori | 6-4 6-4 |
| 2012-12-30 | Brisbane | QF | hard | Kei Nishikori | 6-4 7-6(3) |
| 2011-10-09 | Shanghai Masters | QF | hard | Kei Nishikori | 6-4 6-3 |
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 99). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About