Paul Henri Mathieu defeated Kei Nishikori 6-3 6-4 in the Brisbane quarter-final on hard. The upset overturned the form book — Kei Nishikori came in leading the head-to-head 2–0. Paul Henri Mathieu claimed a first win over Kei Nishikori in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-24 | Roland Garros | R128 | clay | Kei Nishikori | 6-3 7-5 6-1 |
| 2012-04-15 | Monte Carlo Masters | R32 | clay | Kei Nishikori | 6-4 6-2 |
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 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About