Steven Diez defeated Yuichi Sugita 6-4 7-6 in the Barcelona qualifying round 2 on clay. Steven Diez extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-04-24 | Barcelona | Q2 | clay | Steven Diez | 6-4 7-6(7) |
| 2014-08-04 | Canada Masters | Q1 | hard | Yuichi Sugita | 7-6(4) 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
Averages over each player's completed matches in the selected window (200 vs 199). ATP, WTA & Challenger.