Leonardo Mayer defeated Jan Lennard Struff 7-6 6-4 in the Halle round of 32 on grass. The upset overturned the form book — Jan Lennard Struff came in leading the head-to-head 2–1. Leonardo Mayer narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2018-07-02 | Wimbledon | R128 | grass | Jan Lennard Struff | 3-6 6-7(5) 7-6(5) 7-6(5) 6-1 |
| 2017-07-24 | Hamburg | R16 | clay | Leonardo Mayer | 6-2 7-5 |
| 2013-07-15 | Hamburg | R64 | clay | Jan Lennard Struff | 3-6 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 200). ATP, WTA & Challenger.