Bar Blitz KNSB FIDE
JW

Jan Winsemius

Rated since January 2023

1981 Classic
1940 Rapid
1972 Blitz
Jan's accounts
FIDE KNSB

Team Competition

Current teams
Amsterdam West 1
Klasse 3C · 2025-2026 · 2 games
Amsterdam West 2
Hoofdklasse · 2025-2026 · 6 games
Past teams
Amsterdam West 2
1e Klasse B · 2024-2025
7 games
Amsterdam West 1
Klasse 3C · 2023-2024
1 game
Amsterdam West 1
Hoofdklasse · 2023-2024
3 games
Amsterdam West 3
1e Klasse A · 2023-2024
7 games
Amsterdam West 3
Klasse 5G · 2023-2024
5 games
Amsterdam West 1
Klasse 3E · 2022-2023
1 game
Amsterdam West 3
Klasse 5F · 2022-2023
4 games
Amsterdam West 1
Klasse 4D · 2021-2022
1 game
Amsterdam West 2
Klasse 4F · 2021-2022
1 game

The good & the bad

Best wins
Zilverberg, J. (Jasper) 2033
12948 18de BPB Limburg Open 2026 Groep B · Friday 22 May 2026
Groot, R.G.D. (Ronald) 2018
12990 KNSB competitie 2025-2026 Klasse 3 ronde 7 · Saturday 7 February 2026
Köhler, A. (Aran) (FM) 2012
13372 SGA Competitie 2025-2026 Hoofdklasse ronde 5 en 6 · Thursday 5 March 2026
Shah, S.P. (Shrey) 2004
13101 SGA Competitie 2025-2026 Hoofdklasse ronde 4 · Friday 13 February 2026
Hoogenes, G.T.J. (Eric) 1980
10471 Tata Steel Chess Tournament 2026 Weekendvierkampem · Saturday 17 January 2026
Worst losses
Haastere van, R. (Rob) 1773
13607 13e Best of the West Groep A, ronde 5 · Saturday 18 April 2026
Valk Bouman van der, J. (Jim) 1852
13102 13e Best of the West Groep A, ronde 3 · Saturday 21 February 2026
Okita, R. (Ryoga) 1874
12948 18de BPB Limburg Open 2026 Groep B · Sunday 24 May 2026
Nitschke, P. (Peter) 1953
13639 SGA Competitie 2025-2026 Hoofdklasse ronde 6 en 7 · Friday 3 April 2026
Bokkel te, G.J. (Gerrit Jan) 1961
10471 Tata Steel Chess Tournament 2026 Weekendvierkampem · Friday 16 January 2026
18de BPB Limburg Open 2026 Groep B Friday 22 May 2026 +4–2=0 +26.6
Tata Steel Chess Tournament 2026 Weekendvierkampem Friday 16 January 2026 +1–2=0 -8.0
13e Best of the West Groep A, ronde 7 Saturday 18 October 2025 +1–0=0 +7.6
13e Best of the West Groep A, Ronde 6 Saturday 18 October 2025 +1–0=0 +6.6
13e Best of the West Groep A, ronde 5 Saturday 18 October 2025 +0–1=0 -18.9
13e Best of the West Groep A, ronde 4 Saturday 18 October 2025 +1–0=0 +6.7
13e Best of the West Groep A, ronde 3 Saturday 18 October 2025 +0–1=0 -15.4
SGA Competitie 2025-2026 Hoofdklasse ronde 6 en 7 Wednesday 1 October 2025 +0–1=0 -13.2
SGA Competitie 2025-2026 Hoofdklasse ronde 5 en 6 Wednesday 1 October 2025 +1–0=0 +14.6
SGA Competitie 2025-2026 Hoofdklasse ronde 4 Wednesday 1 October 2025 +1–0=0 +14.9
SGA Competitie 2025-2026 Hoofdklasse ronde 3 Wednesday 1 October 2025 +0–1=0 -5.4
SGA Competitie 2025-2026 Hoofdklasse ronde 2 Wednesday 1 October 2025 +0–1=0 -7.1
SGA Competitie 2025-2026 Hoofdklasse ronde 1 Wednesday 1 October 2025 +0–1=0 -2.7
KNSB competitie 2025-2026 Klasse 3 ronde 7 Saturday 20 September 2025 +1–0=0 +15.3
KNSB competitie 2025-2026 Klasse 3 ronde 5 Saturday 20 September 2025 +0–1=0 -11.6
SGA Competitie 2024-2025 1e Klasse B ronde 7 Monday 30 September 2024 +1–0=0 +8.9
12e Best of the West Groep A, rondes 6 en 7 Saturday 28 September 2024 +1–0=0 +7.2

Rating History

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Peak Ratings

Classic 1981 July 1, 2026
Rapid 1972 April 1, 2026
Blitz 1972 April 1, 2026

Games

Wins 13
Losses 11
Draws 0
Win Rate 54%

Performance by Color

ColorWinsDrawsLossesWin Rate
White 8 0 5 62%
Black 5 0 6 45%

Recent KNSB Matches

Buzink, C.M.L. (Maurice) (1801) Saturday 13 June 2026 WIN +7.6
Petrik, Matus (1835) Monday 25 May 2026 WIN +8.9
Willen, R.A.C. (Ronny) (1858) Monday 25 May 2026 WIN +9.7
Okita, R. (Ryoga) (1874) Sunday 24 May 2026 LOSS -7.4
Tips, Tibo (1867) Saturday 23 May 2026 WIN +10.0
Demiddele, Kevin (2003) Saturday 23 May 2026 LOSS -10.3
Zilverberg, J. (Jasper) (2033) Friday 22 May 2026 WIN +15.7
Walraven van, A. (Arie) (1759) Saturday 9 May 2026 WIN +6.6
Haastere van, R. (Rob) (1773) Saturday 18 April 2026 LOSS -18.9
Nitschke, P. (Peter) (1953) Friday 3 April 2026 LOSS -13.2
Bos, B. (Bas) (1775) Saturday 14 March 2026 WIN +6.7
FM Köhler, A. (Aran) (2012) Thursday 5 March 2026 WIN +14.6
Valk Bouman van der, J. (Jim) (1852) Saturday 21 February 2026 LOSS -15.4
Shah, S.P. (Shrey) (2004) Friday 13 February 2026 WIN +14.9
Groot, R.G.D. (Ronald) (2018) Saturday 7 February 2026 WIN +15.3
Molenaar, C. (Christiaan) (2020) Sunday 18 January 2026 LOSS -9.9
Hoogenes, G.T.J. (Eric) (1980) Saturday 17 January 2026 WIN +13.8
Bokkel te, G.J. (Gerrit Jan) (1961) Friday 16 January 2026 LOSS -11.9
Visser, I. (Ingmar) (1988) Saturday 13 December 2025 LOSS -11.6
Polak, A. (Alexander) (2186) Tuesday 2 December 2025 LOSS -5.4