Mate Delic defeated Marc Sieber 3-6 6-3 6-3 in the Croatia F6 round of 16 on clay. The upset overturned the form book — Marc Sieber came in leading the head-to-head 1–0. Mate Delic claimed a first win over Marc Sieber in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-01-09 | Turkey F1 | R16 | hard | Marc Sieber | 1-6 6-4 6-0 |
Averages over each player's completed matches in the selected window (80 vs 141). 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