Martin Sinner defeated Jan Siemerink 6-4 6-7 7-6 in the Copenhagen round of 16 on carpet. The upset overturned the form book — Jan Siemerink came in leading the head-to-head 1–0, defending last year's quarter-final. Martin Sinner claimed a first win over Jan Siemerink in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1995-05-08 | Hamburg | R64 | clay | Jan Siemerink | 6-4 2-6 6-2 |
Averages over each player's completed matches in the selected window (45 vs 199). 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