Botic Van De Zandschulp defeated Igor Sijsling 4-6 6-4 6-3 in the M25 Doboj 1 semi-final on clay. The upset overturned the form book — Igor Sijsling came in leading the head-to-head 3–1. Botic Van De Zandschulp narrowed the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-04-07 | M25 Bolton 1 | F | hard | Botic Van De Zandschulp | 7-6(2) 6-7(6) 7-5 |
| 2019-02-10 | M15 Kaarst 1 | F | carpet | Igor Sijsling | 6-1 6-4 |
| 2018-03-05 | France F4 | F | hard | Igor Sijsling | 6-3 |
| 2018-01-29 | Germany F3 | SF | carpet | Igor Sijsling | 6-4 7-5 |
Averages over each player's completed matches in the selected window (200 vs 40). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Van De Zandschulp B.: 6 days rest · 1 match, 19 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