3 games · 2016–2025 · 3 classical · 0 online
Van Dael 11 draws1 Heemskerk
50.0% for Van Dael
Openings between them
| A05 | King's Indian Attack: Symmetrical Defense | 1 | 100.0% |
| C16 | French Defense: Winawer Variation, Advance Variation | 1 | 50.0% |
| C18 | French Defense: Winawer Variation, Portisch-Hook Variation | 1 | 0.0% |
All games
| Heemskerk, W2167 | 0-1 | Van Dael, Siem2260 | Dutch League 2025-26 | 2025 |
| Van Dael, Siem2286 | 0-1 | Heemskerk, W2179 | 21st Hoogeveen Open 2017 | 2017 |
| Van Dael, Siem2017 | ½-½ | Heemskerk, W2217 | 54th Groningen Open 2016 | 2016 |