Go Soeda defeated Marius Copil 7-6 6-3 in the US Open qualifying round 1 on hard. The upset overturned the form book — Marius Copil came in leading the head-to-head 2–1. Go Soeda narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2016-08-24 | US Open | Q128 | hard | Go Soeda | 7-6(3) 6-3 |
| 2016-05-23 | Roland Garros | Q1 | clay | Marius Copil | 6-4 2-6 6-3 |
| 2016-05-16 | Roland Garros | Q128 | clay | Marius Copil | 6-4 2-6 6-3 |
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About