Bar Blitz KNSB
FC

Fons Claessen

Rated since January 2023

1581 Classic
1620 Rapid
1620 Blitz
Fons's accounts
KNSB

Team Competition

Current teams
Erasmus 3
Klasse 2A · 2025-2026 · 1 game
Moerkapelle 2
Klasse 2A · 2025-2026 · 1 game
Past teams
De Willige Dame 1
Klasse 2A · 2024-2025
6 games
De Willige Dame 1
Klasse 2A · 2023-2024
7 games
De Willige Dame 1
Klasse 2B · 2022-2023
4 games
De Willige Dame 1
Klasse 2C · 2021-2022
4 games

The good & the bad

Best wins
Werff v.d., R. (Rocky) 1698
11107 RSB Competitie 2024-2025 8-tallen april · Tuesday 15 April 2025
Hauwert, J. (Jan) 1623
10181 RSB Competitie 2024-2025 4-tallen december · Tuesday 26 November 2024
Zekusic, Z. (Zoran) 1612
7917 RSB Competitie 2023-2024 8-tallen november · Tuesday 3 October 2023
Edelman, J.J. (Jasper) 1607
11108 RSB Competitie 2024-2025 4-tallen april · Monday 7 April 2025
Berg van den, M.A. (Michiel) 1576
9698 RSB Competitie 2024-2025 8-tallen oktober · Thursday 24 October 2024
Worst losses
Heukels, T. (Theo) 1154
8161 RSB Competitie 2023-2024 8-tallen december · Tuesday 28 November 2023
Noordermeer, W. (Wim) 1303
6667 RSB Competitie 2022-2023 4-tallen maart · Thursday 2 February 2023
Jong de, G.C. (Gerrit) 1378
7919 RSB Competitie 2023-2024 4-tallen november · Tuesday 14 November 2023
Balm, B.J.H.M. (Ben) 1457
7210 RSB Competitie 2022-2023 4-tallen juni · Tuesday 16 May 2023
As van, C.J. (Cor) 1570
7209 RSB Competitie 2022-2023 8-tallen juni · Tuesday 23 May 2023
No FIDE-rated tournaments found.
RSB Competitie 2025-2026 Viertallen juni Monday 1 September 2025 +0–1=0 -11.7
RSB Competitie 2025-2026 Achttallen mei Monday 1 September 2025 +0–0=1 +0.1
RSB Competitie 2025-2026 Viertallen mei Monday 1 September 2025 +0–1=0 -11.1
RSB Competitie 2025-2026 Achttallen april Monday 1 September 2025 +0–1=0 -8.2
RSB Competitie 2025-2026 Viertallen april Monday 1 September 2025 +0–1=0 -7.7
RSB Competitie 2025-2026 Achttallen maart Monday 1 September 2025 +0–0=1
RSB Competitie 2025-2026 Viertallen maart Monday 1 September 2025 +0–0=1 +2.9
RSB Competitie 2025-2026 Achttallen februari Monday 1 September 2025 +0–1=0 -8.7
RSB Competitie 2025-2026 Viertallen februari Monday 1 September 2025 +0–1=0 -13.1
RSB Competitie 2025-2026 Achtallen december Monday 1 September 2025 +0–1=0 -5.7
RSB Competitie 2025-2026 Viertallen december Monday 1 September 2025 +0–0=1 +0.9
RSB Competitie 2025-2026 Viertallen Oktober Monday 1 September 2025 +0–1=0 -7.5
RSB Competitie 2024-2025 4-tallen juni Sunday 1 September 2024 +0–0=1 -0.4
RSB Competitie 2024-2025 8-tallen mei Sunday 1 September 2024 +0–0=1 -2.1
RSB Competitie 2024-2025 4-tallen mei Sunday 1 September 2024 +0–0=1 -1.6
RSB Competitie 2024-2025 8-tallen april Sunday 1 September 2024 +1–0=0 +14.9
RSB Competitie 2024-2025 4-tallen april Sunday 1 September 2024 +1–0=0 +11.7
RSB Competitie 2024-2025 8-tallen maart Sunday 1 September 2024 +0–1=0 -5.2
RSB Competitie 2024-2025 4-tallen maart Sunday 1 September 2024 +0–0=1 +1.4
RSB Competitie 2024-2025 8-tallen februari Sunday 1 September 2024 +0–1=0 -10.8
RSB Competitie 2024-2025 4-tallen Januari Sunday 1 September 2024 +0–0=1 +1.1
RSB Competitie 2024-2025 4-tallen december Sunday 1 September 2024 +1–0=0 +12.2
RSB Competitie 2024-2025 8-tallen oktober Sunday 1 September 2024 +1–1=0 +2.7
RSB Competitie 2024-2025 4-tallen oktober Sunday 1 September 2024 +0–1=0
RSB Competitie 2023-2024 8-tallen december Friday 1 September 2023 +0–1=0 -19.5
RSB Competitie 2023-2024 4-tallen november Friday 1 September 2023 +1–1=0 +2.2
RSB Competitie 2023-2024 8-tallen november Friday 1 September 2023 +1–0=1 +27.5
RSB Competitie 2022-2023 4-tallen Juli Thursday 1 September 2022 +0–0=1 +1.0
RSB Competitie 2022-2023 8-tallen juni Thursday 1 September 2022 +0–1=0 -6.7
RSB Competitie 2022-2023 4-tallen juni Thursday 1 September 2022 +0–1=0 -10.3
RSB Competitie 2022-2023 4-tallen mei Thursday 1 September 2022 +1–0=0 +13.8
RSB Competitie 2022-2023 8-tallen april Thursday 1 September 2022 +0–0=1 +5.5
RSB Competitie 2022-2023 4-tallen april Thursday 1 September 2022 +1–0=0 +14.3
RSB Competitie 2022-2023 8-tallen maart Thursday 1 September 2022 +0–1=0 -3.3
RSB Competitie 2022-2023 4-tallen maart Thursday 1 September 2022 +0–1=0 -15.0
RSB Competitie 2022-2023 8-tallen januari Thursday 1 September 2022 +0–0=1 +2.0
RSB Competitie 2022-2023 4-tallen januari Thursday 1 September 2022 +0–0=1 +0.9

Rating History

Loading KNSB rating history...

Peak Ratings

Classic 1656 May 1, 2025
Rapid 1620 April 1, 2026
Blitz 1620 April 1, 2026

Games

Wins 8
Losses 18
Draws 14
Win Rate 20%

Performance by Color

ColorWinsDrawsLossesWin Rate
White 4 3 9 25%
Black 4 11 9 17%

Recent KNSB Matches

Pluim, R. (Rienk) (1616) Friday 12 June 2026 LOSS -11.7
Vons, D.C. (Dick) (1606) Tuesday 26 May 2026 DRAW +0.1
Harteveld, A. (Arie) (1643) Tuesday 19 May 2026 LOSS -11.1
Geerling, H. (Hans) (1747) Friday 24 April 2026 LOSS -8.2
Kemner, A.C.M. (Mike) (1762) Friday 17 April 2026 LOSS -7.7
Vries de, F.W. (Folkert) Tuesday 24 March 2026 DRAW
Bax, K. (Klaas) (1701) Tuesday 17 March 2026 DRAW +2.9
Weerd de, J. (Johan) (1750) Monday 23 February 2026 LOSS -8.7
Jong de, G.C. (Gerrit) (1621) Tuesday 10 February 2026 LOSS -13.1
Genderen van, G.J.H. (Jan) (1859) Tuesday 2 December 2025 LOSS -5.7
Veloso, P.D. (Pedro) (1671) Thursday 27 November 2025 DRAW +0.9
Veth, J.L. (Leo) (1801) Tuesday 14 October 2025 LOSS -7.5
Versteeg, R. (Rik) (1642) Thursday 5 June 2025 DRAW -0.4
Gorkum van, K. (Klaas) (1595) Thursday 22 May 2025 DRAW -2.1
Stabij, A.A. (Ad) (1610) Tuesday 13 May 2025 DRAW -1.6
Werff v.d., R. (Rocky) (1698) Tuesday 15 April 2025 WIN +14.9
Edelman, J.J. (Jasper) (1607) Monday 7 April 2025 WIN +11.7
Oosterom van, C. (Cees) (1864) Tuesday 18 March 2025 LOSS -5.2
Groenheijde, J.W. (Wim) (1672) Tuesday 11 March 2025 DRAW +1.4
Op de Beek, F.A.C.M. (Frans) (1693) Tuesday 11 February 2025 LOSS -10.8