Jean Marc Werner defeated Steven Diez 6-3 6-1 in the Spain F35 round of 16 on clay. The upset overturned the form book — Steven Diez came in leading the head-to-head 2–0, but Jean Marc Werner had been the form player, winning 5 of their last 10 on clay. Jean Marc Werner claimed a first win over Steven Diez in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-05 | Spain F32 | QF | clay | Steven Diez | 7-6(6) 6-3 |
| 2011-10-24 | Spain F39 | SF | clay | Steven Diez | 6-1 7-5 |
Averages over each player's completed matches in the selected window (31 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