Marc Giner defeated Steven Diez 6-4 4-6 6-1 in the Spain F31 qualifying round on clay. The upset overturned the form book — Steven Diez came in leading the head-to-head 5–0. Marc Giner claimed a first win over Steven Diez in six meetings, narrowing the head-to-head to 5–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-10-15 | Algeria F2 | SF | clay | Steven Diez | 6-4 6-4 |
| 2012-02-06 | Spain F1 | R32 | clay | Steven Diez | 6-1 6-1 |
| 2011-10-31 | Spain F41 | QF | clay | Steven Diez | 6-1 6-1 |
| 2011-10-24 | Spain F39 | R32 | clay | Steven Diez | 5-7 7-5 6-0 |
| 2009-07-13 | Spain F23 | R16 | clay | Steven Diez | 6-3 6-2 |
Averages over each player's completed matches in the selected window (86 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