Dominic Thiem defeated Jan Lennard Struff 4-6 6-4 6-4 6-3 in the Australian Open round of 128 on hard. The result followed the form book — Dominic Thiem came in leading the head-to-head 2–1, defending last year's round of 32. Dominic Thiem extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-09-17 | St. Petersburg | R16 | carpet | Dominic Thiem | 7-6(4) 6-4 |
| 2016-04-11 | Monte Carlo Masters | R64 | clay | Dominic Thiem | 1-6 6-3 6-4 |
| 2015-01-12 | Auckland | R32 | hard | Jan Lennard Struff | 6-7(6) 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
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 (200 vs 200). ATP, WTA & Challenger.