KNSB FIDE
JO

Jan van Os

Rated since January 2023

1932 Classic
1932 Rapid
1932 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
JONG DE, S.F.J. (SIEGBERT) 1913
9801 KNSB competitie 2024-2025 Klasse 6 ronde 2 · Saturday 9 November 2024
SPRIK, S. (SANDER) 1907
13249 KNSB competitie 2025-2026 Klasse 6 ronde 7 · Saturday 7 March 2026
FABRIEK, T.E. (EDWIN) 1852
8600 KNSB competitie 2023-2024 Klasse 5 ronde 7 · Saturday 23 March 2024
WASSENAAR, J.M. (MEINE) 1729
6235 KNSB competitie 2022-2023 Klasse 4 ronde 5 · Saturday 17 December 2022
SERIER, J. (HANS) 1637
6605 NOSBO competitie 2022-2023 Februari 2023 - beker · Monday 6 February 2023
Worst losses
LOOS, E.J.T. (TIM) 1724
6604 NOSBO competitie 2022-2023 Februari 2023 · Thursday 16 February 2023
JELLEMA, P.W.J. (PIETER) 1942
7255 NOSBO competitie 2022-2023 Juni 2023 - beker · Friday 9 June 2023
ASSEN, P.J.H. (PAUL) 2013
8054 NOSBO-competitie 2023-2024 December 2023 · Friday 8 December 2023
INGEN VAN, A.S.P. (TON) 2018
11330 NOSBO competitie 2024-2025 Mei 2025 · Tuesday 13 May 2025
SADALLAH, O.G. (OSAMA) 2063
6984 NOSBO competitie 2022-2023 April 2023 · Tuesday 11 April 2023
No FIDE-rated tournaments found.
KNSB competitie 2025-2026 Klasse 6 ronde 7 Saturday 20 September 2025 +1–0=0 +12.1
NOSBO competitie 2024-2025 Mei 2025 Wednesday 1 January 2025 +0–1=0 -9.4
KNSB competitie 2024-2025 Klasse 4 ronde 5 Saturday 21 September 2024 +0–0=1 +6.5
KNSB competitie 2024-2025 Klasse 6 ronde 2 Saturday 21 September 2024 +1–0=0 +12.6
KNSB competitie 2024-2025 Klasse 4 ronde 1 Saturday 21 September 2024 +0–0=1 -0.2
NOSBO-competitie 2023-2024 Februari 2024 Sunday 1 October 2023 +0–0=1 +2.4
NOSBO-competitie 2023-2024 Januari 2024 Sunday 1 October 2023 +0–0=1 -5.8
NOSBO-competitie 2023-2024 December 2023 Sunday 1 October 2023 +0–1=1 -6.3
KNSB competitie 2023-2024 Klasse 5 ronde 7 Saturday 16 September 2023 +1–0=0 +10.7
KNSB competitie 2023-2024 Klasse 5 ronde 6 Saturday 16 September 2023 +0–0=1 -5.7
KNSB competitie 2023-2024 Klasse 5 ronde 5 Saturday 16 September 2023 +1–0=0 +4.7
KNSB competitie 2023-2024 Klasse 6 ronde 3 Saturday 16 September 2023 +1–0=0 +4.6
KNSB competitie 2023-2024 KNSB Beker 2023-2024 voor novemberlijst Saturday 16 September 2023 +1–0=0 +0.4
KNSB competitie 2023-2024 Klasse 5 ronde 1 Saturday 16 September 2023 +1–0=0
NOSBO competitie 2022-2023 Juni 2023 - beker Monday 24 October 2022 +0–1=0 -9.3
NOSBO competitie 2022-2023 April 2023 Monday 24 October 2022 +0–1=0 -6.1
NOSBO competitie 2022-2023 Maart 2023 - beker Monday 24 October 2022 +0–0=1 +0.6
NOSBO competitie 2022-2023 Maart 2023 Monday 24 October 2022 +0–0=1 -4.6
NOSBO competitie 2022-2023 Februari 2023 Monday 24 October 2022 +0–1=0 -17.8
NOSBO competitie 2022-2023 Februari 2023 - beker Monday 24 October 2022 +1–0=0 +4.8
NOSBO competitie 2022-2023 Januari 2023 Monday 24 October 2022 +0–0=1 -0.4
NOSBO competitie 2022-2023 December 2022 Monday 24 October 2022 +1–0=0 +4.6
KNSB competitie 2022-2023 Klasse 4 ronde 9 Saturday 17 September 2022 +0–0=1 -3.6
KNSB competitie 2022-2023 Klasse 4 ronde 8 Saturday 17 September 2022 +0–1=0 -3.6
KNSB competitie 2022-2023 Klasse 4 ronde 7 Saturday 17 September 2022 +0–0=1 -3.5
KNSB competitie 2022-2023 Klasse 4 ronde 6 Saturday 17 September 2022 +0–0=1 -2.4
KNSB competitie 2022-2023 Klasse 4 ronde 5 Saturday 17 September 2022 +1–0=0 +7.6
KNSB competitie 2022-2023 Klasse 4 ronde 4 Saturday 17 September 2022 +0–0=1 -4.3

Rating History

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Peak Ratings

Classic 1932 April 1, 2026
Rapid 1932 May 1, 2026
Blitz 1932 May 1, 2026

Games

Wins 10
Losses 6
Draws 13
Win Rate 34%

Performance by Color

Color Wins Draws Losses Win Rate
White 5 6 4 33%
Black 5 7 2 36%

Recent Matches

Sprik, S. (Sander) (1907) Saturday 7 March 2026 WIN +12.1
Ingen van, A.S.P. (Ton) (2018) Tuesday 13 May 2025 LOSS -9.4
Riksten, P.H. (Peter) (2124) Saturday 14 December 2024 DRAW +6.5
Jong de, S.F.J. (Siegbert) (1913) Saturday 9 November 2024 WIN +12.6
Urk van, A. (Auke) (1904) Saturday 21 September 2024 DRAW -0.2
Fabriek, T.E. (Edwin) (1852) Saturday 23 March 2024 WIN +10.7
Maanen van, L. (Leo) (1731) Saturday 2 March 2024 DRAW -5.7
Doller, P. (Pieter) (1903) Monday 19 February 2024 DRAW +2.4
Petrelli, M. (Matteo) (1581) Saturday 3 February 2024 WIN +4.7
Praag van, R.J. (Rob) (1664) Friday 26 January 2024 DRAW -5.8
Doller, P. (Pieter) (1867) Friday 15 December 2023 DRAW +0.7
Assen, P.J.H. (Paul) (2013) Friday 8 December 2023 LOSS -7.0
Luijkx, D.M. (Dagmar) (1585) Saturday 25 November 2023 WIN +4.6
Diepen van, G.W. (Ineke) (1229) Sunday 29 October 2023 WIN +0.4
Hoeve ten, J. (Jesse) Saturday 7 October 2023 WIN
Jellema, P.W.J. (Pieter) (1942) Friday 9 June 2023 LOSS -9.3
Graaf van der, J.F. (Jaap) (1759) Saturday 22 April 2023 DRAW -3.6
Sadallah, O.G. (Osama) (2063) Tuesday 11 April 2023 LOSS -6.1
Tolman, F. (Fedde) (2166) Saturday 1 April 2023 LOSS -3.6
Wierenga, J. (Jaël) (1888) Friday 24 March 2023 DRAW +0.6