Yuichi Sugita defeated Jan Lennard Struff 7-6 6-4 in the Dubai round of 16 on hard. The upset overturned the form book — Jan Lennard Struff came in defending last year's round of 32. Yuichi Sugita extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-04-16 | Monte Carlo Masters | R64 | clay | Jan Lennard Struff | 6-3 6-2 |
| 2015-10-26 | Valencia | Q2 | hard | Yuichi Sugita | 2-6 6-3 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About
Averages over each player's completed matches in the selected window (181 vs 200). ATP, WTA & Challenger.