Jesper De Jong defeated Igor Sijsling 7-6 3-6 6-4 in the M15 Alkmaar 1 quarter-final on clay. The upset overturned the form book — Igor Sijsling came in leading the head-to-head 2–0. Jesper De Jong claimed a first win over Igor Sijsling in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-08-29 | M15 Alkmaar 1 | SF | clay | Igor Sijsling | 6-3 6-2 |
| 2020-02-29 | M25 Sunderland 1 | SF | hard | Igor Sijsling | 6-2 1-6 6-2 |
Averages over each player's completed matches in the selected window (199 vs 40). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
De Jong J.: 5 days rest · 1 match, 26 games (7d). 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