KNSB FIDE
SD

Siem van Dael

Rated since January 2023

2265 Classic
2265 Rapid

RIVALRY

Nemesis
Casares Cabanas, Carlos
Games: 3 · Win rate: 33%
Kryptonite
Lenaerts, L. (Lennert)
Games: 3 · Win rate: 0%

The good & the bad

Best wins
BEERDSEN, T.A. (THOMAS) (GM) 2500
9795 KNSB competitie 2024-2025 Meesterklasse ronde 3 · 2024-11-09
PIJPERS, A. (ARTHUR) (IM) 2460
11262 NK kwalificatie Groep A · 2025-05-25
LEENHOUTS, K. (KOEN) (GM) 2443
IX Open Internacional Ciudad de Oviedo · 2023-07-25
COLOVIC, ALEKSANDAR (GM) 2441
CE CECLUB SEGUNDA DIVISION 2023 · 2023-08-18
LOPEZ, J.J. (JASEL JUSTO) (IM) 2434
6549 Tata Steel Chess Tournament 2023 Qualifiers · 2023-01-25
Worst losses
BORIC, JAKOV 1804
S: Split Chess Open 2023 · 2023-08-06
KOZLOVIC, JERNEJ (FM) 1878
27. Hit open 2023-A · 2023-03-21
UBER GRACIA, HUGO (CM) 1931
IX Chessable Sunway Sitges Chess Festival - Group A · 2022-12-13
KRNIC, IVAN 1972
S: Split Chess Open 2023 · 2023-08-06
GRAHN, VIDAR (FM) 1980
Rilton Cup 2022-2023 · 2022-12-27
Belgian Interclubs Round 2025-2026 Ronde 7 Sun, Feb 8, 2026 +1–0=0 +9.1
Belgian Interclubs Round 2025-2026 Ronde 5 Sun, Dec 7, 2025 +0–0=1 -2.6
Belgian Interclubs Round 2025-2026 Ronde 4 Sun, Nov 23, 2025 +1–0=0 +5.3
Belgian Interclubs Round 2025-2026 Ronde 3 Sun, Nov 16, 2025 +1–0=0 +2.8
Belgian Interclubs Round 2025-2026 Ronde 2 Sun, Oct 12, 2025 +0–1=0 -9.0
KNSB competitie 2025-2026 Meesterklasse ronde 6 Sat, Sep 20, 2025 +1–0=0 +7.7
KNSB competitie 2025-2026 Meesterklasse ronde 8 Sat, Sep 20, 2025 +1–0=0 +7.2
KNSB competitie 2025-2026 Meesterklasse ronde 7 Sat, Sep 20, 2025 +2–0=0 +17.7
KNSB competitie 2025-2026 Meesterklasse ronde 4 Sat, Sep 20, 2025 +1–0=0 +7.8
KNSB competitie 2025-2026 Meesterklasse ronde 2 Sat, Sep 20, 2025 +1–0=0 +5.6
KNSB competitie 2025-2026 Meesterklasse ronde 1 Sat, Sep 20, 2025 +0–1=0 -9.3
Hoogeveen Schaaktoernooi Open Groep Sat, Oct 26, 2024 +3–4=1 -35.2
KNSB competitie 2024-2025 Meesterklasse ronde 9 Sat, Sep 21, 2024 +0–0=1 -0.3
KNSB competitie 2024-2025 Meesterklasse ronde 8 Sat, Sep 21, 2024 +0–1=0 -5.9
KNSB competitie 2024-2025 Meesterklasse ronde 7 Sat, Sep 21, 2024 +0–1=0 -5.9
KNSB competitie 2024-2025 Meesterklasse ronde 5 Sat, Sep 21, 2024 +1–0=0 +8.4
KNSB competitie 2024-2025 Meesterklasse ronde 4 Sat, Sep 21, 2024 +0–1=0 -10.3
KNSB competitie 2024-2025 Meesterklasse ronde 3 Sat, Sep 21, 2024 +1–0=0 +12.6
KNSB competitie 2024-2025 Meesterklasse ronde 2 Sat, Sep 21, 2024 +0–1=0 -4.4
16e BPB Limburg Open 2024 tienkamp Groep A Wed, May 15, 2024 +1–7=1 -17.5
Hoogeveen 2023 Open Groep A Sat, Oct 21, 2023 +5–1=2 +29.0
KNSB competitie 2023-2024 Meesterklasse ronde 9 Sat, Sep 16, 2023 +0–1=0 -3.4
KNSB competitie 2023-2024 Meesterklasse ronde 8 Sat, Sep 16, 2023 +1–0=0 +7.4
KNSB competitie 2023-2024 Meesterklasse ronde 6 Sat, Sep 16, 2023 +0–0=1 +0.3
KNSB competitie 2023-2024 Meesterklasse ronde 4 Sat, Sep 16, 2023 +0–1=0 -7.7
KNSB competitie 2023-2024 Meesterklasse ronde 3 Sat, Sep 16, 2023 +1–0=0 +6.1
KNSB competitie 2023-2024 Meesterklasse ronde 2 Sat, Sep 16, 2023 +0–0=1 +0.3
KNSB competitie 2023-2024 Meesterklasse ronde 1 Sat, Sep 16, 2023 +0–0=1 +3.6
15e BPB Limburg Open 2023 Groep A Fri, May 26, 2023 +2–2=2 -24.0
European Individual Chess Championship 2023. Fri, Mar 3, 2023 +5–5=1 +1.9
Tata Steel Chess Tournament 2023 Qualifiers Fri, Jan 13, 2023 +5–2=2 +22.7
Belgian Interclubs Round 2025-2026 Ronde 1 Sun, Sep 28, 2025 +1–0=0 +3.1
KNSB competitie 2025-2026 KNSB Beker ronde 3 voor maart rating Sat, Sep 20, 2025 +0–2=0 -12.3
KNSB competitie 2025-2026 KNSB Beker ronde 2 voor januari rating Sat, Sep 20, 2025 +0–1=0 -10.6
KNSB competitie 2025-2026 Klasse 2 ronde 3 Sat, Sep 20, 2025 +1–0=0 +4.2
NK kwalificatie Groep A Sat, May 24, 2025 +6–6=1 +4.7
Liga Galega por Equipos de Club 2025 - Division de Honra Rondas 10-11 Fri, May 2, 2025 +1–0=0 +6.0
Liga Galega por Equipos de Club 2025 - Division de Honra Rondas 8-9 Fri, Apr 4, 2025 +0–1=0 -5.1
Belgian Interclubs 2024-2025 Round 9 Sun, Mar 16, 2025 +0–0=1 -0.7
Belgian Interclubs 2024-2025 Round 8 Sun, Feb 16, 2025 +1–0=0 +5.7
Liga Galega por Equipos de Club 2025 - Division de Honra Rondas 1-3 Sat, Feb 1, 2025 +0–0=1 +3.3
Belgian Interclubs 2024-2025 Round 6 Sun, Jan 26, 2025 +1–0=0 +4.5
Belgian Interclubs 2024-2025 Round 5 Sun, Dec 1, 2024 +1–0=0 +8.2
Belgian Interclubs 2024-2025 Round 4 Sun, Nov 17, 2024 +1–0=0 +3.0
Belgian Interclubs 2024-2025 Round 3 Sun, Nov 3, 2024 +1–0=0 +6.2
BSV Open Groep A Mon, Oct 28, 2024 +2–0=0 +2.0
Belgian Interclubs 2024-2025 Round 2 Sun, Oct 6, 2024 +1–0=0 +0.9
Belgian Interclubs 2024-2025 Round 1 Sun, Sep 29, 2024 +1–0=0 +4.4
KNSB competitie 2024-2025 KNSB Beker ronde 2 voor januarilijst Sat, Sep 21, 2024 +1–0=0 +9.1
Campeonato de Espana por Equipos de Club de Segunda Division 2024 Sun, Aug 11, 2024 +2–0=2 +8.4
S: Solta Chess Open 2024 Sat, Jun 29, 2024 +5–1=3 +7.8
Liga Galega por Equipos de Club 2024 Primeira Division Grupo A Rondas 9-11 Fri, May 3, 2024 +1–0=0 +0.9
Belgian Interclubs 2023-2024 Round 11 Sun, Apr 21, 2024 +1–0=0 +2.2
Liga Galega por Equipos de Club 2024 Primeira Division Grupo A Rondas 6-8 Sat, Apr 6, 2024 +2–0=0 +3.6
GRENKE Chess Open 2024 A-Open Thu, Mar 28, 2024 +4–3=2 -26.5
Belgian Interclubs 2023-2024 Round 10 Sun, Mar 24, 2024 +0–1=0 -10.1
2023-24 4NCL Division 1 Rounds 7-8 Sat, Mar 16, 2024 +0–1=1 -10.0
Liga Galega por Equipos de Club 2024 Primeira Division Grupo A Rondas 2-5 Fri, Mar 1, 2024 +3–0=0 +4.2
Liga Galega por Equipos de Club 2024 Primeira Division Grupo A Rondas 1 Sat, Feb 17, 2024 +1–0=0 +1.7
2023-24 4NCL Division 1 Rounds 5-6 Sat, Feb 10, 2024 +0–1=1 -3.9
Belgian Interclubs 2023-2024 Round 7 Sun, Feb 4, 2024 +1–0=0 +3.5
IV elllobregat Open Chess Tournament 2023 Group A Thu, Nov 30, 2023 +2–5=2 -31.9
BSV Open Groep A Mon, Nov 20, 2023 +1–0=0 +0.0
Belgian Interclubs 2023-2024 Round 4 Sun, Nov 19, 2023 +0–0=1 -0.9
6. Sparkassen-Schach-Open Leer A-Open Sat, Oct 28, 2023 +5–1=0 +15.1
Belgian Interclubs 2023-2024 Round 3 Sun, Oct 22, 2023 +1–0=0 +3.8
Belgian Interclubs 2023-2024 Round 2 Sun, Oct 15, 2023 +0–0=1 -1.5
European Open Club Cup 2023 Sun, Oct 1, 2023 +4–2=1 +13.3
Belgian Interclubs 2023-2024 Round 1 Sat, Sep 23, 2023 +0–0=1 +1.8
KNSB competitie 2023-2024 KNSB Beker 2023-2024 voor decemberlijst Sat, Sep 16, 2023 +0–1=0 -9.7
CE CECLUB SEGUNDA DIVISION 2023 Sun, Aug 13, 2023 +4–0=1 +23.2
S: Split Chess Open 2023 Sat, Aug 5, 2023 +4–2=0 -24.5
IX Open Internacional Ciudad de Oviedo Mon, Jul 24, 2023 +4–0=5 +21.2
XXXVIII Cidade de Ferrol Thu, Jul 13, 2023 +5–2=2 -5.3
S: 6th International Chess Amateur Tournament Solta Chess Open 2023 Tue, Jun 27, 2023 +5–1=3 -4.5
XIX Torneo Cidade de Lugo Fri, Jun 16, 2023 +4–0=1 -0.3
Liga Galega por Equipos de Club 2023 Division de Honra Rondas 8-11 Fri, May 5, 2023 +2–2=0 -2.8
Liga Galega por Equipos de Club 2023 Division de Honra Rondas 5-7 Fri, Apr 14, 2023 +2–1=0 +5.9
27. Hit open 2023-A Thu, Mar 16, 2023 +5–3=1 -6.9
Belgian Interclubs 2022-2023 Ronde 7 Sun, Feb 12, 2023 +0–0=1 +2.1
Rilton Cup 2022-2023 Tue, Dec 27, 2022 +2–3=4 -22.0
BSV Open 2022/2023 Groep A Mon, Dec 12, 2022 +2–1=0 -11.7
IX Chessable Sunway Sitges Chess Festival - Group A Mon, Dec 12, 2022 +4–4=2 -43.2
Belgian Interclubs 2022-2023 Ronde 5 Sun, Dec 4, 2022 +0–0=1 +0.4
XVII Torneo Cidade de Lugo Fri, Nov 25, 2022 +5–0=0 +5.4
Belgian Interclubs 2022-2023 Ronde 3 Sun, Nov 6, 2022 +0–1=0 -4.9
Uppsala Young Champions 2022 Fri, Oct 28, 2022 +5–3=1 +8.4
KNSB competitie 2022-2023 Meesterklasse ronde 8 Sat, Sep 17, 2022 +0–1=0 -2.2
KNSB competitie 2022-2023 Meesterklasse ronde 7 Sat, Sep 17, 2022 +1–0=0 +4.9

Rating History

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Peak Ratings

Classic 2351 Jan. 1, 2023
Rapid 2289 June 1, 2025
Blitz 2265 March 1, 2026

Games

Wins 140
Losses 79
Draws 54
Win Rate 51%

Performance by Color

Color Wins Draws Losses Win Rate
White 75 29 35 54%
Black 65 25 44 49%

Recent Matches

FM Kokje, J.J.I. (Joris) (2281) 2026-03-28 WIN +7.7
Rootselaar van, R. (Rik) (2262) 2026-03-07 WIN +7.2
FM Zouaghi, A. (Amir) (2341) 2026-02-08 WIN +9.1
FM Lenaerts, L. (Lennert) (2365) 2026-02-08 LOSS -6.1
FM Lenaerts, L. (Lennert) (2365) 2026-02-08 LOSS -6.1
FM Ritzerveld, N. (Noah) (2329) 2026-02-07 WIN +8.8
FM Ritzerveld, N. (Noah) (2329) 2026-02-07 WIN +8.8
Kshirsagar, P.V. (Pranav) (2155) 2025-12-14 LOSS -10.6
WFM Bashylina, L. (Luisa) (2166) 2025-12-07 DRAW -2.6
Allaert, D. (Dimitri) (2168) 2025-11-23 WIN +5.3
FM Rijnaarts, S. (Sjef) (2284) 2025-11-22 WIN +7.8
Rogiers, Jan (2026) 2025-11-16 WIN +2.8
Huibers, P. (Peter) (2109) 2025-11-01 WIN +4.2
FM Kazarjan, G. (Gachatur) (2235) 2025-10-12 LOSS -9.0
FM Heemskerk, W. (Wim) (2165) 2025-10-04 WIN +5.6
Coppenolle Van, L. (Lander) (2041) 2025-09-28 WIN +3.1
FM Hagen van der, L.G.J. (Loek) (2218) 2025-09-20 LOSS -9.3
Kumar, P.S. (Prajit Sai) (2200) 2025-05-25 WIN +6.1
IM Pijpers, A. (Arthur) (2460) 2025-05-25 WIN +11.6
IM Boer de, E.J. (Eelke) (2391) 2025-05-25 LOSS -5.6