Kevin Anderson defeated Kei Nishikori 6-1 3-6 7-6 in the New York semi-final on hard. The upset overturned the form book — Kei Nishikori came in leading the head-to-head 6–3. Kevin Anderson narrowed the head-to-head to 6–4.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-11-12 | Tour Finals | RR | hard | Kevin Anderson | 6-0 6-1 |
| 2018-10-29 | Paris Masters | R16 | hard | Kei Nishikori | 6-4 6-4 |
| 2018-10-22 | Vienna | F | hard | Kevin Anderson | 6-3 7-6 |
| 2017-05-22 | Geneva | QF | clay | Kei Nishikori | 2-6 6-4 7-6 |
| 2017-03-20 | Miami Masters | R64 | hard | Kei Nishikori | 6-4 6-3 |
| 2015-10-11 | Shanghai Masters | R16 | hard | Kevin Anderson | 7-6 7-6 |
| 2015-02-23 | Acapulco | SF | hard | Kei Nishikori | 6-2 3-6 6-3 |
| 2015-02-09 | Memphis | F | hard | Kei Nishikori | 6-4 6-4 |
| 2010-08-01 | Washington | Q16 | hard | Kei Nishikori | 4-6 7-6(4) 6-4 |
Averages over each player's completed matches in the selected window (156 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