Donald Young defeated Gilles Muller 6-3 6-3 in the Acapulco round of 32 on hard. The upset overturned the form book — Gilles Muller came in leading the head-to-head 2–0, but Donald Young had been the form player, winning 2 of their last 4 on hard. Donald Young claimed a first win over Gilles Muller in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-07-11 | Newport | SF | grass | Gilles Muller | 6-3 6-4 |
| 2015-07-27 | Atlanta | R32 | hard | Gilles Muller | 6-2 6-1 |
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 138). ATP, WTA & Challenger.