Bar Blitz KNSB FIDE
WK

Wisse Klaassen

Rated since April 2023

1726 Classic
1646 Rapid
1769 Blitz
Wisse's accounts
FIDE KNSB
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RIVALRY

Nemesis
Derks, M. (Mark)
Games: 4 · Win rate: 0%
Kryptonite
Lapka, P. (Pawel)
Games: 4 · Win rate: 0%
Easy Target
Oppenhuizen, W.G. (Wiebe)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
Knobbe, E. (Elise) 1985
11398 FK Snelschaken 2025 Groep A · Friday 16 May 2025
Siblesz, J.T. (Tjeerd) 1964
12691 S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) · Monday 1 December 2025
Zijlstra, J. (Jasper) 1905
13689 FK Snelschaak 2026 Groep A · Friday 24 April 2026
Rijswijk van, M. (Martin) 1839
12691 S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) · Monday 1 December 2025
Sevensma, F.W. (Frans) 1820
11718 S.C. Heerenveen interne competitie 03-11-2025 t/m 22-12-2025 (010012) · Monday 24 November 2025
Worst losses
Kaal, J. (John) 1662
10470 Tata Steel Chess Tournament 2026 Tienkampen · Saturday 24 January 2026
Derks, M. (Mark) 1665
11398 FK Snelschaken 2025 Groep A · Friday 16 May 2025
Dam van, F. (Frans) 1676
13812 S.C. Heerenveen interne competitie 04-05-2026 t/m 11-05-2026 (010012) · Monday 11 May 2026
Cloosterman, T. (Teun) 1708
10470 Tata Steel Chess Tournament 2026 Tienkampen · Sunday 25 January 2026
Lapka, P. (Pawel) 1720
11416 S.C. Heerenveen interne competitie 12-05-2025 t/m 19-05-2025 (010012) · Monday 12 May 2025
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +4–3=2 +18.9
FK Snelschaak 2026 Groep A Friday 24 April 2026 +4–6=1 +3.5
FK Rapid voor teams - Saturday 21 March 2026 +0–5=2 -13.7
S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) Monday 1 December 2025 +5–4=2 +44.1
FSB-competitie 2025-2026 ronde 7 2e klasse Monday 1 September 2025 +0–0=1 -2.8
FSB-competitie 2025-2026 ronde 6 2e klasse Monday 1 September 2025 +0–0=1 +6.0
FSB-competitie 2025-2026 ronde 4 2e klasse Monday 1 September 2025 +1–0=0 +17.1
FSB-competitie 2025-2026 ronde 2 3e klasse Monday 1 September 2025 +1–0=0
FSB-competitie 2025-2026 ronde 1 2e klasse Monday 1 September 2025 +0–0=1 -2.7
S.C. Heerenveen interne competitie 04-05-2026 t/m 11-05-2026 (010012) Monday 25 August 2025 +0–2=0 -22.9
S.C. Heerenveen interne competitie 02-03-2026 t/m 20-04-2026 (010012) Monday 25 August 2025 +1–1=4 +9.0
S.C. Heerenveen interne competitie 12-01-2026 t/m 23-02-2026 (010012) Monday 25 August 2025 +1–1=3 +17.6
S.C. Heerenveen interne competitie 03-11-2025 t/m 22-12-2025 (010012) Monday 25 August 2025 +1–1=2 +10.3
S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) Monday 25 August 2025 +3–1=3 +37.1
S.C. Heerenveen interne competitie 25-08-2025 t/m 25-08-2025 (010012) Monday 25 August 2025 +0–1=0 -3.8
46ste Open Internationaal Toernooi Gent Saturday 19 July 2025 +1–5=0 -19.2
FK Snelschaken 2025 Groep A Friday 16 May 2025 +3–6=1 -8.9
S.C. Heerenveen interne competitie 12-05-2025 t/m 19-05-2025 (010012) Monday 26 August 2024 +1–1=0 -0.9

Team Competition

Current teams
Heerenveen 3
2e klasse C · 2025-2026 · 4 games
Heerenveen 4
3e klasse B · 2025-2026 · 1 game
Past teams
Heerenveen 3
2e klasse C · 2024-2025
Heerenveen 4
3e klasse B · 2024-2025
Heerenveen 3
Derde klasse · 2023-2024

Rating History

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Peak Ratings

Classic 1749 May 1, 2026
Rapid 1660 May 1, 2025
Blitz 1769 May 1, 2026

Games

Wins 26
Losses 37
Draws 23
Win Rate 30%

Performance by Color

ColorWinsDrawsLossesWin Rate
White 14 9 16 36%
Black 12 14 21 26%

Recent KNSB Matches

Dam van, F. (Frans) (1676) Monday 11 May 2026 LOSS -15.0
Velde, J. (Jan) (1886) Monday 4 May 2026 LOSS -7.9
Meijer, D. (Daniël) (1786) Friday 24 April 2026 LOSS -5.9
Spek van der, A. (Arthur) (1990) Friday 24 April 2026 LOSS -5.4
Zijlstra, J. (Jasper) (1905) Friday 24 April 2026 WIN +17.2
Everaars, D. (Dick) (1730) Friday 24 April 2026 WIN +11.3
Velde, J. (Jan) (1949) Friday 24 April 2026 LOSS -6.5
Bokal, E. (Elmadani) (1695) Friday 24 April 2026 DRAW -2.5
Koning, P. (Peter) (1873) Friday 24 April 2026 LOSS -8.9
Doetjes, P. (Peter) (1674) Friday 24 April 2026 WIN +9.3
Meirink, J. (Johan) (1900) Friday 24 April 2026 LOSS -8.0
Deinum, M. (Martijn) (1602) Friday 24 April 2026 WIN +7.1
Pragt, A. (Arjen) (2039) Friday 24 April 2026 LOSS -4.2
Rijswijk van, M. (Martin) (1862) Monday 20 April 2026 DRAW +4.0
Rubertus, R. (Robert) (1661) Monday 13 April 2026 DRAW -2.8
Derks, M. (Mark) (1686) Monday 30 March 2026 DRAW -1.8
Both, G.P. (Gert) (1919) Tuesday 24 March 2026 DRAW +6.0
Oppenhuizen, W.G. (Wiebe) (1715) Monday 23 March 2026 WIN +11.7
Both, G.P. (Gert) (1871) Saturday 21 March 2026 LOSS -5.8
Cliteur, O.P. (Olaf) (1986) Saturday 21 March 2026 LOSS -3.2