Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. M Warmerdam vs L Slagboom |
| 1-0 | 44 | 2022 | 14th BPB Limburg Open | A06 Reti Opening |
2. L Slagboom vs S Gupta |
| 1-0 | 34 | 2022 | 14th BPB Limburg Open | B12 Caro-Kann Defense |
3. L Slagboom vs M van Foreest |
| 0-1 | 21 | 2022 | 14th BPB Limburg Open | A21 English |
4. N Zwirs vs L Slagboom |
| 1-0 | 53 | 2022 | 14th BPB Limburg Open | E09 Catalan, Closed |
5. J Schroeder vs L Slagboom |
| ½-½ | 22 | 2023 | 15th BPB Limburg Open | E20 Nimzo-Indian |
6. L Slagboom vs A Diermair |
| 0-1 | 44 | 2023 | Riga Tech Open-A | C02 French, Advance |
7. L Slagboom vs N Miezis |
| 0-1 | 28 | 2023 | Riga Tech Open-A | B41 Sicilian, Kan |
8. L Slagboom vs E G Kreken |
| 1-0 | 73 | 2023 | Riga Tech Open-A | C97 Ruy Lopez, Closed, Chigorin |
9. S Strating vs L Slagboom |
| ½-½ | 68 | 2023 | Dutch League 2023/24 | D31 Queen's Gambit Declined |
10. L Slagboom vs R Lecomte |
| 1-0 | 38 | 2023 | Dutch League 2023/24 | B47 Sicilian, Taimanov (Bastrikov) Variation |
11. L Slagboom vs R Arnold |
| 1-0 | 76 | 2023 | 26th Hoogeveen Open | B32 Sicilian |
12. T Kett vs L Slagboom |
| 0-1 | 37 | 2023 | 26th Hoogeveen Open | C18 French, Winawer |
13. G Swathi vs L Slagboom |
| 1-0 | 71 | 2023 | 26th Hoogeveen Open | C02 French, Advance |
14. L Slagboom vs N Zwirs |
| 0-1 | 29 | 2023 | 26th Hoogeveen Open | B56 Sicilian |
15. L Slagboom vs A Fehr |
| 1-0 | 49 | 2023 | 26th Hoogeveen Open | B92 Sicilian, Najdorf, Opocensky Variation |
16. I Maris vs L Slagboom |
| 0-1 | 45 | 2023 | 26th Hoogeveen Open | A00 Uncommon Opening |
17. L Slagboom vs M Kiran |
| 1-0 | 31 | 2023 | 26th Hoogeveen Open | B56 Sicilian |
18. L Slagboom vs G Van der Stricht |
| 0-1 | 50 | 2023 | Dutch League 2023/24 | B92 Sicilian, Najdorf, Opocensky Variation |
19. L Slagboom vs P Zelbel |
| 0-1 | 43 | 2023 | Dutch League 2023/24 | B92 Sicilian, Najdorf, Opocensky Variation |
20. L Slagboom vs J Vlaming |
| 1-0 | 51 | 2023 | Dutch League 2023/24 | D34 Queen's Gambit Declined, Tarrasch |
21. T Beerdsen vs L Slagboom |
| 1-0 | 25 | 2023 | Groningen Open | C11 French |
22. L Slagboom vs S Keuning |
| ½-½ | 71 | 2023 | Groningen Open | B31 Sicilian, Rossolimo Variation |
23. M van Batenburg vs L Slagboom |
| 0-1 | 34 | 2023 | Groningen Open | C18 French, Winawer |
24. L Slagboom vs R Lahaye |
| 0-1 | 42 | 2023 | Groningen Open | B56 Sicilian |
25. A Adamovics vs L Slagboom |
| 0-1 | 55 | 2023 | Groningen Open | D35 Queen's Gambit Declined |