Bar Blitz KNSB FIDE
JW

Jan Winsemius

Rated since January 2023

1981 Classic
1958 Blitz
Jan's accounts
FIDE KNSB
Followers
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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
Leeuwen van, N.R. (Nick) 1713
13483 Amsterdam Chess Festival Blitz 2026 + NK Studenten Blitz Groep A · Friday 10 July 2026
Haastere van, R. (Rob) 1773
13607 13e Best of the West Groep A, ronde 5 · Saturday 18 April 2026
Parwani, Neel 1830
13483 Amsterdam Chess Festival Blitz 2026 + NK Studenten Blitz Groep A · Friday 10 July 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
Amsterdam Chess Festival Blitz 2026 + NK Studenten Blitz Groep A Friday 10 July 2026 +6–5=2 -23.2
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

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
Amsterdam West 1
Klasse 3C · 2023-2024
Amsterdam West 1
Hoofdklasse · 2023-2024
Amsterdam West 3
1e Klasse A · 2023-2024
Amsterdam West 3
Klasse 5G · 2023-2024
Amsterdam West 1
Klasse 3E · 2022-2023
Amsterdam West 3
Klasse 5F · 2022-2023
Amsterdam West 1
Klasse 4D · 2021-2022
Amsterdam West 2
Klasse 4F · 2021-2022

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 19
Losses 16
Draws 2
Win Rate 51%

Performance by Color

ColorWinsDrawsLossesWin Rate
White 11 1 8 55%
Black 8 1 8 47%

Recent KNSB Matches

Heijer den, C.A. (Rolinde) (2147) Friday 10 July 2026 LOSS -7.0
Leek van der, W.M. (Mark) (1899) Friday 10 July 2026 WIN +9.7
Valk Bouman van der, J. (Jim) (1833) Friday 10 July 2026 WIN +7.6
Leeuwen van, N.R. (Nick) (1713) Friday 10 July 2026 LOSS -20.7
Uddin, A.T. (Ahnaf) (2181) Friday 10 July 2026 LOSS -6.1
Smid, T.R. (Tom) (1899) Friday 10 July 2026 WIN +9.7
Jong, C. (Casijn) (1893) Friday 10 July 2026 DRAW -3.0
Gontsjarenko, A. (Andry) (1632) Friday 10 July 2026 WIN +2.8
Parwani, Neel (1830) Friday 10 July 2026 LOSS -8.8
Daiwik Hemant Mehta (1521) Friday 10 July 2026 DRAW -11.2
Samala, Y.Y. (Yuvan Yatin) (1750) Friday 10 July 2026 WIN +5.2
Batenburg van, M. (Mees) (2406) Friday 10 July 2026 LOSS -1.7
Stone, Joseph (1333) Friday 10 July 2026 WIN +0.3
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