Gilles Muller defeated Ernests Gulbis 3-6 7-6 6-4 7-6 in the US Open round of 64 on hard. The upset overturned the form book — Ernests Gulbis came in leading the head-to-head 1–0, defending last year's round of 128. Gilles Muller claimed a first win over Ernests Gulbis in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-05-28 | Roland Garros | R128 | clay | Ernests Gulbis | 2-6 6-4 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 200). ATP, WTA & Challenger.