KNSB FIDE
CO

Chiel van Oosterom

Rated since January 2023

2401 Classic
2426 Rapid
2411 Blitz

RIVALRY

Nemesis
Rijn van, A.B. (Anton)
Games: 5 · Win rate: 60%
Easy Target
Hazenberg, F.C. (Frans)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
BEERDSEN, T.A. (THOMAS) (GM) 2503
10277 OSBO Snelschaakkampioenschap 2025 Finale A · Saturday 4 January 2025
LAI, H.T. (HING TING) (IM) 2487
6232 KNSB competitie 2022-2023 Klasse 1 ronde 5 · Saturday 17 December 2022
DOVGALIUK, OLEKSANDR 2413
11421 Hemelvaartstoernooi SSC 1922 Groep A · Thursday 29 May 2025
DOROKHIN, M. (MYKHAILO) (FM) 2372
11990 KNSB competitie 2025-2026 Klasse 1 ronde 2 · Saturday 4 October 2025
GRUTTER, T.J. (TIM) (IM) 2367
11421 Hemelvaartstoernooi SSC 1922 Groep A · Thursday 29 May 2025
Worst losses
BLOK, M. (MICHIEL) 2164
10277 OSBO Snelschaakkampioenschap 2025 Finale A · Saturday 4 January 2025
CORNELISSE, J.J.A. (JOHN) 2198
12381 Oostelijk snelschaakkampioenschap Groep A · Saturday 3 January 2026
RIJN VAN, A.B. (ANTON) (CM) 2202
12381 Oostelijk snelschaakkampioenschap Groep A · Saturday 3 January 2026
HUMMEL, E.D.J. (ERIK-JAN) (FM) 2258
11849 KNSB competitie 2025-2026 Klasse 1 ronde 1 · Saturday 20 September 2025
BEZEMER, A. (ARNO) (FM) 2273
6165 KNSB competitie 2022-2023 Klasse 1 ronde 4 · Saturday 26 November 2022
Oostelijk snelschaakkampioenschap Groep A Saturday 3 January 2026 +19–3=1 +2.5
OSBO Snelschaakkampioenschap 2025 Finale A Saturday 4 January 2025 +12–1=3 +18.2
OSBO Snelschaakkampioenschap 2025 Voorrondes Saturday 4 January 2025 +7–2=0 -3.9
KNSB competitie 2025-2026 Klasse 1 ronde 7 Saturday 20 September 2025 +1–0=0 +1.7
KNSB competitie 2025-2026 Klasse 1 ronde 5 Saturday 20 September 2025 +1–0=0 +1.7
KNSB competitie 2025-2026 Klasse 1 Ronde 4 Saturday 20 September 2025 +1–0=0 +2.7
KNSB competitie 2025-2026 Klasse 1 ronde 3 Saturday 20 September 2025 +1–0=0 +3.3
KNSB competitie 2025-2026 Klasse 1 ronde 2 Saturday 20 September 2025 +1–0=0 +4.6
KNSB competitie 2025-2026 Klasse 1 ronde 1 Saturday 20 September 2025 +0–1=0 -7.0
Hemelvaartstoernooi SSC 1922 Groep A Thursday 29 May 2025 +7–0=0 +16.8
OSBO Rapidkampioenschap Groep A Saturday 12 April 2025 +5–0=2 +5.6
KNSB competitie 2024-2025 Klasse 1 ronde 9 Saturday 21 September 2024 +1–0=0 +3.6
KNSB competitie 2024-2025 Klasse 1 ronde 8 Saturday 21 September 2024 +1–0=0 +1.5
KNSB competitie 2024-2025 Klasse 1 ronde 7 Saturday 21 September 2024 +1–0=0 +1.5
KNSB competitie 2024-2025 Klasse 1 ronde 6 Saturday 21 September 2024 +1–0=0 +1.8
KNSB competitie 2024-2025 Klasse 1 ronde 5 Saturday 21 September 2024 +0–0=1 -3.5
KNSB competitie 2024-2025 Klasse 1 ronde 4 Saturday 21 September 2024 +0–0=1 -2.7
KNSB competitie 2024-2025 Klasse 1 ronde 3 Saturday 21 September 2024 +0–0=1 -1.4
KNSB competitie 2024-2025 Klasse 1 ronde 2 Saturday 21 September 2024 +1–0=0 +1.8
KNSB competitie 2024-2025 Klasse 1 ronde 1 Saturday 21 September 2024 +0–0=1 -0.2
OGD-Prinsenstadtoernooi Groep A Friday 29 March 2024 +2–1=0 +0.9
KNSB competitie 2023-2024 Klasse 1 ronde 9 Saturday 16 September 2023 +1–0=0 +1.9
KNSB competitie 2023-2024 Klasse 1 ronde 8 Saturday 16 September 2023 +0–1=0 -5.2
KNSB competitie 2023-2024 Klasse 1 ronde 7 Saturday 16 September 2023 +0–0=1 -3.0
KNSB competitie 2023-2024 Klasse 1 ronde 6 Saturday 16 September 2023 +1–0=0 +0.2
KNSB competitie 2023-2024 Klasse 1 ronde 5 Saturday 16 September 2023 +0–0=1 +0.2
KNSB competitie 2023-2024 Klasse 1 ronde 4 Saturday 16 September 2023 +1–0=0 +3.0
KNSB competitie 2023-2024 Klasse 1 ronde 3 Saturday 16 September 2023 +1–0=0 +2.4
KNSB competitie 2023-2024 Klasse 1 ronde 2 Saturday 16 September 2023 +1–0=0 +1.1
KNSB competitie 2022-2023 Klasse 1 ronde 9 Saturday 17 September 2022 +1–0=0 +3.5
KNSB competitie 2022-2023 Klasse 1 ronde 8 Saturday 17 September 2022 +1–0=0 +1.4
KNSB competitie 2022-2023 Klasse 1 ronde 7 Saturday 17 September 2022 +1–0=0 +1.1
KNSB competitie 2022-2023 Klasse 1 ronde 6 Saturday 17 September 2022 +0–1=0 -6.2
KNSB competitie 2022-2023 Klasse 1 ronde 5 Saturday 17 September 2022 +1–0=0 +6.1
KNSB competitie 2022-2023 Klasse 1 ronde 4 Saturday 17 September 2022 +0–1=0 -6.7

Rating History

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Peak Ratings

Classic 2416 March 1, 2026
Rapid 2426 June 1, 2025
Blitz 2417 Feb. 1, 2026

Games

Wins 71
Losses 11
Draws 12
Win Rate 76%

Performance by Color

Color Wins Draws Losses Win Rate
White 37 3 4 84%
Black 34 9 7 68%

Recent Matches

Mil van, L.H.F. (Lucas) (2139) Saturday 7 February 2026 WIN +1.7
CM Rijn van, A.B. (Anton) (2202) Saturday 3 January 2026 WIN +2.3
CM Rijn van, A.B. (Anton) (2202) Saturday 3 January 2026 LOSS -7.7
Hazenberg, F.C. (Frans) (1929) Saturday 3 January 2026 WIN +0.5
Hazenberg, F.C. (Frans) (1929) Saturday 3 January 2026 WIN +0.5
Brummelen van, K.B. (Kevin) (2213) Saturday 3 January 2026 WIN +2.4
Brummelen van, K.B. (Kevin) (2213) Saturday 3 January 2026 WIN +2.4
Cornelisse, J.J.A. (John) (2198) Saturday 3 January 2026 LOSS -7.8
Cornelisse, J.J.A. (John) (2198) Saturday 3 January 2026 LOSS -7.8
Pijkeren, J. (Jan) (2214) Saturday 3 January 2026 WIN +2.4
Pijkeren, J. (Jan) (2214) Saturday 3 January 2026 WIN +2.4
Randtwijk van, M.A. (Mick) (2203) Saturday 3 January 2026 WIN +2.3
Randtwijk van, M.A. (Mick) (2203) Saturday 3 January 2026 WIN +2.3
Lith van, A. (Arjan) (2118) Saturday 3 January 2026 WIN +1.5
Lith van, A. (Arjan) (2118) Saturday 3 January 2026 WIN +1.5
Schenkeveld, D.J. (Dick) (2192) Saturday 3 January 2026 WIN +2.2
Pijkeren, J. (Jan) (2214) Saturday 3 January 2026 WIN +2.4
Lith van, A. (Arjan) (2118) Saturday 3 January 2026 DRAW -3.5
Husers, Y.G.M. (Yannic) (2044) Saturday 3 January 2026 WIN +1.0
Hoff van 't, T. (Tom) (2190) Saturday 3 January 2026 WIN +2.2