Daniel Altmaier defeated Jonas Merckx 1-6 6-1 6-2 in the Belgium F9 round of 16 on clay. The upset overturned the form book — Jonas Merckx came in leading the head-to-head 1–0. Daniel Altmaier claimed a first win over Jonas Merckx in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-04-17 | Qatar F3 | QF | hard | Jonas Merckx | 6-1 6-2 |
Averages over each player's completed matches in the selected window (200 vs 52). ATP, WTA & Challenger.
Altmaier D.: 8 days rest · 2 matches (14d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the clay field, opponent-adjusted over 52 weeks). About