KNSB FIDE
DC

Diederick Casteleijn

Rated since January 2023

2129 Classic
2129 Rapid
2129 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
KOOIJMANS, J. (JERMO) (FM) 2322
6232 KNSB competitie 2022-2023 Klasse 1 ronde 5 · Saturday 17 December 2022
DUGAROV, A. (ALEXEI) 2184
9433 KNSB competitie 2024-2025 Klasse 1 ronde 1 · Saturday 21 September 2024
PLAS VAN DER, H.R.E. (ROB) 2164
9247 Persoonlijk Kampioenschap RSB/RSB Open 2024 Groep A · Friday 30 August 2024
JONGSTE, D. (DAVID) 2150
12988 KNSB competitie 2025-2026 Klasse 1 ronde 7 · Saturday 7 February 2026
CLERCQ LE, M. (MAXIM) 2131
10492 KNSB competitie 2024-2025 Klasse 1 ronde 6 · Saturday 8 February 2025
Worst losses
JESELSON, ANDREW 1858
34th NATO Chess Championship 2024 · Wednesday 23 October 2024
SZAFRANSKI, MACIEJ 1860
35th NATO Chess Championship 2025 · Thursday 21 August 2025
GHITA, VLAD-BOGDAN 1872
Open Leuven 2023 · Thursday 9 November 2023
FILIPOW, MATEUSZ 1875
35th NATO Chess Championship 2025 · Tuesday 19 August 2025
HOOGLAND, B. (BAUKE) 1893
7920 RSB Competitie 2023-2024 Beker ronde 1 · Saturday 4 November 2023
Persoonlijk Kampioenschap RSB/RSB Open 2024 Groep A Monday 19 August 2024 +4–2=0 +14.8
DD Den Haag Open Schaakkampioenschap 2024 Ronde 7 Wednesday 7 February 2024 +0–1=0 -10.3
DD Den Haag Open Schaakkampioenschap 2024 Ronde 3 t/m 6 Wednesday 7 February 2024 +2–0=1 +18.8
DD Den Haag Open Schaakkampioenschap 2024 Ronde 1 t/m 2 Wednesday 7 February 2024 +2–0=0 +1.1
Tata Steel Chess Tournament 2024 Dagvierkampen Friday 12 January 2024 +1–1=1 +1.6
Tata Steel Chess Tournament 2023 Dagvierkampen Friday 13 January 2023 +1–0=2 +19.7
KNSB competitie 2025-2026 Klasse 1 ronde 7 Saturday 20 September 2025 +1–0=0 +14.2
KNSB competitie 2025-2026 KNSB Beker ronde 2 voor januari rating Saturday 20 September 2025 +1–0=0 +12.4
KNSB competitie 2025-2026 Klasse 1 ronde 5 Saturday 20 September 2025 +1–0=0 +11.8
KNSB competitie 2025-2026 Klasse 1 Ronde 4 Saturday 20 September 2025 +0–1=0 -7.1
KNSB competitie 2025-2026 Klasse 1 ronde 3 Saturday 20 September 2025 +0–1=0 -3.4
KNSB competitie 2025-2026 Klasse 1 ronde 1 Saturday 20 September 2025 +0–0=1 +0.9
RSB Competitie 2025-2026 Achttallen februari Monday 1 September 2025 +1–0=0 +13.2
RSB Competitie 2025-2026 Beker ronde 3 Monday 1 September 2025 +1–0=0 +5.8
RSB Competitie 2025-2026 Beker ronde 2 Monday 1 September 2025 +1–0=0 +4.9
RSB Competitie 2025-2026 Achtallen november Monday 1 September 2025 +0–1=0 -17.0
RSB Competitie 2025-2026 Beker ronde 1 Monday 1 September 2025 +1–0=0 +7.5
HSB competitie 2025-2026 November beker H Monday 1 September 2025 +1–0=0 +10.2
RSB Competitie 2025-2026 Achttallen Oktober Monday 1 September 2025 +0–0=1 -3.6
HSB competitie 2025-2026 September 2025 Monday 1 September 2025 +0–1=0 -15.1
35th NATO Chess Championship 2025 Sunday 17 August 2025 +4–3=0 -43.6
34th NATO Chess Championship 2024 Monday 21 October 2024 +3–2=2 -14.6
KNSB competitie 2024-2025 Klasse 1 ronde 9 Saturday 21 September 2024 +0–1=0 -6.8
KNSB competitie 2024-2025 Klasse 1 ronde 8 Saturday 21 September 2024 +1–0=0 +9.7
KNSB competitie 2024-2025 KNSB Beker ronde 4 voor aprillijst Saturday 21 September 2024 +0–0=1 +5.0
KNSB competitie 2024-2025 Klasse 1 ronde 7 Saturday 21 September 2024 +0–1=0 -6.0
KNSB competitie 2024-2025 KNSB Beker ronde 3 voor aprillijst Saturday 21 September 2024 +1–0=0 +8.6
KNSB competitie 2024-2025 Klasse 1 ronde 6 Saturday 21 September 2024 +1–0=0 +13.2
KNSB competitie 2024-2025 KNSB Beker ronde 2 voor januarilijst Saturday 21 September 2024 +0–0=1 +0.9
KNSB competitie 2024-2025 Klasse 1 ronde 5 Saturday 21 September 2024 +0–0=1 -1.0
KNSB competitie 2024-2025 Klasse 1 ronde 4 Saturday 21 September 2024 +0–1=0 -6.8
KNSB competitie 2024-2025 Klasse 1 ronde 3 Saturday 21 September 2024 +0–0=1 +0.3
KNSB competitie 2024-2025 Klasse 1 ronde 2 Saturday 21 September 2024 +0–0=1 +0.5
KNSB competitie 2024-2025 Klasse 1 ronde 1 Saturday 21 September 2024 +1–0=0 +15.5
RSB Competitie 2024-2025 8-tallen mei Sunday 1 September 2024 +1–0=0 +3.6
RSB Competitie 2024-2025 8-tallen april Sunday 1 September 2024 +1–0=0 +7.6
RSB Competitie 2024-2025 4-tallen maart Sunday 1 September 2024 +0–0=1 -5.8
RSB Competitie 2024-2025 Beker ronde 3 Sunday 1 September 2024 +1–0=0 +8.8
RSB Competitie 2024-2025 8-tallen februari Sunday 1 September 2024 +0–0=1 -1.5
RSB Competitie 2024-2025 Beker ronde 2 Sunday 1 September 2024 +1–0=0 +9.5
RSB Competitie 2024-2025 8-tallen december Sunday 1 September 2024 +0–1=0 -12.5
RSB Competitie 2024-2025 Beker ronde 1 Sunday 1 September 2024 +1–0=0 +5.1
RSB Competitie 2024-2025 8-tallen november Sunday 1 September 2024 +0–0=1 -1.0
RSB Competitie 2024-2025 8-tallen oktober Sunday 1 September 2024 +0–0=1 -0.1
Open Leuven 2023 Thursday 9 November 2023 +4–1=0 -6.0
KNSB competitie 2023-2024 Klasse 1 ronde 9 Saturday 16 September 2023 +0–0=1 -0.1
KNSB competitie 2023-2024 Klasse 1 ronde 8 Saturday 16 September 2023 +0–0=1 -0.4
KNSB competitie 2023-2024 Klasse 1 ronde 7 Saturday 16 September 2023 +0–1=0 -7.1
KNSB competitie 2023-2024 Klasse 1 ronde 6 Saturday 16 September 2023 +1–0=0 +14.1
KNSB competitie 2023-2024 Klasse 1 ronde 5 Saturday 16 September 2023 +0–0=1 +6.0
KNSB competitie 2023-2024 Klasse 1 ronde 4 Saturday 16 September 2023 +0–0=1 -1.9
KNSB competitie 2023-2024 Klasse 1 ronde 3 Saturday 16 September 2023 +0–0=1 +2.4
KNSB competitie 2023-2024 Klasse 1 ronde 2 Saturday 16 September 2023 +0–1=0 -11.5
KNSB competitie 2023-2024 Klasse 1 ronde 1 Saturday 16 September 2023 +0–0=1 -0.6
RSB Competitie 2023-2024 8-tallen juli Friday 1 September 2023 +1–0=0 +10.7
RSB Competitie 2023-2024 8-tallen april Friday 1 September 2023 +1–0=0 +7.6
RSB Competitie 2023-2024 8-tallen maart Friday 1 September 2023 +1–0=0 +6.1
RSB Competitie 2023-2024 4-tallen maart Friday 1 September 2023 +1–0=0 +7.1
RSB Competitie 2023-2024 8-tallen februari Friday 1 September 2023 +1–0=0 +7.5
RSB Competitie 2023-2024 4-tallen Januari Friday 1 September 2023 +0–1=0 -15.0
RSB Competitie 2023-2024 8-tallen december Friday 1 September 2023 +1–0=0 +5.3
RSB Competitie 2023-2024 Beker ronde 1 Friday 1 September 2023 +0–1=0 -18.8
RSB Competitie 2023-2024 8-tallen november Friday 1 September 2023 +0–1=1 -20.3
Persoonlijk Kampioenschap van de RSB 2023 Groep A Monday 14 August 2023 +5–1=0 +40.8
Chessable Open NK 2023 Vierkampen Monday 24 July 2023 +1–1=1 -4.9
KNSB competitie 2022-2023 Klasse 1 ronde 9 Saturday 17 September 2022 +0–1=0 -3.1
KNSB competitie 2022-2023 Klasse 1 ronde 7 Saturday 17 September 2022 +0–0=1 +7.8
KNSB competitie 2022-2023 Klasse 1 ronde 6 Saturday 17 September 2022 +0–1=0 -13.5
KNSB competitie 2022-2023 Klasse 1 ronde 5 Saturday 17 September 2022 +1–0=0 +21.4
RSB Competitie 2022-2023 8-tallen juli Thursday 1 September 2022 +1–0=0 +4.8
RSB Competitie 2022-2023 8-tallen mei Thursday 1 September 2022 +0–1=0 -13.3
RSB Competitie 2022-2023 8-tallen april Thursday 1 September 2022 +0–0=1 +0.9
RSB Competitie 2022-2023 8-tallen maart Thursday 1 September 2022 +1–0=0 +8.1
RSB Competitie 2022-2023 4-tallen maart Thursday 1 September 2022 +1–0=0 +2.1
RSB Competitie 2022-2023 8-tallen januari Thursday 1 September 2022 +1–0=0 +9.5

Rating History

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Peak Ratings

Classic 2146 May 1, 2025
Rapid 2133 March 1, 2026
Blitz 2133 March 1, 2026

Games

Wins 56
Losses 28
Draws 27
Win Rate 50%

Performance by Color

Color Wins Draws Losses Win Rate
White 26 16 12 48%
Black 30 11 16 53%

Recent Matches

Both, E. (Erik) (2121) Monday 23 February 2026 WIN +13.2
Griend van de, J. (Johan) (1891) Saturday 7 February 2026 WIN +5.8
Jongste, D. (David) (2150) Saturday 7 February 2026 WIN +14.2
Niet de, G.M. (Gert-Michiel) (2069) Sunday 14 December 2025 WIN +12.4
Brinkman, C. (Kees) (1828) Saturday 13 December 2025 WIN +4.9
Hatzis Bakratsas, A. (Alexandros) (2052) Saturday 13 December 2025 WIN +11.8
Dreelinck, A. (Adriaan) (2245) Saturday 22 November 2025 LOSS -7.1
Steijn, A.J. (Bram) (1949) Monday 3 November 2025 LOSS -17.0
Daudey, A. (Arjan) (1931) Saturday 1 November 2025 WIN +7.5
IM Hendriks, W.M.M. (Willy) (2396) Saturday 1 November 2025 LOSS -3.4
Dijk van, E. (Eduard) (2019) Thursday 30 October 2025 WIN +10.2
Dekker, M. (Marvin) (2026) Monday 29 September 2025 DRAW -3.6
Romkes, G. (Gosse) (2023) Thursday 25 September 2025 LOSS -15.1
Valk van der, N. (Niklas) (2170) Saturday 20 September 2025 DRAW +0.9
Risk, Gregory (1826) Friday 22 August 2025 WIN +3.1
Bradley, William (1810) Thursday 21 August 2025 WIN +2.8
Szafranski, Maciej (1860) Thursday 21 August 2025 LOSS -19.2
Korge, Kersti (1836) Wednesday 20 August 2025 WIN +3.2
Filipow, Mateusz (1875) Tuesday 19 August 2025 LOSS -18.9
Jeselson, Andrew (1930) Tuesday 19 August 2025 LOSS -17.6