KNSB FIDE
JK

Joop Kooijman

Rated since January 2023

1762 Classic
1735 Rapid
1728 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
NOORDIJK, E.M. (ED) 1811
13636 LeiSB regionale competitie 25-26 1e klasse april · Wednesday 22 April 2026
ALVARES, E.F.S. (ERIC) 1788
10706 KNSB competitie 2024-2025 Klasse 6 ronde 6 · Saturday 8 March 2025
BIRGINIA, J.J.E. (JADEN) 1705
13636 LeiSB regionale competitie 25-26 1e klasse april · Thursday 26 March 2026
STEVENSE, G. (GIOVANNI) 1672
8694 Regionale competitie Leidse Schaakbond 2023 - 2024 1e Klasse 2024-03 · Tuesday 12 March 2024
FALK, W. (WINFRIED) 1644
8879 Regionale competitie Leidse Schaakbond 2023 - 2024 1e Klasse 2024-04 · Wednesday 3 April 2024
Worst losses
BEEN, K. (KLAAS) 1453
Tournament 20231210513 · Monday 11 December 2023
SCHOONMAN, I.M. (IVO) 1770
12155 LeiSB regionale competitie 25-26 1e klasse oktober · Friday 17 October 2025
KLAAUW VAN DER, S. (SEBASTIAAN) 1781
10551 LeiSB competitie 2024-2025 1e 23-1 22-1 · Thursday 20 February 2025
HOOGENBOOM, J.J. (JAN) 1786
12850 LeiSB regionale competitie 25-26 1e klasse januari 2026 · Tuesday 6 January 2026
JONG DE, M. (MAARTEN) 1795
9744 LeiSB competitie 2024-2025 1 28-10-24-11 · Friday 22 November 2024
No FIDE-rated tournaments found.
LeiSB regionale competitie 25-26 1e klasse april Wednesday 1 October 2025 +2–0=0 +26.8
LeiSB regionale competitie 25-26 1e klasse maart Wednesday 1 October 2025 +1–0=0 +6.4
LeiSB regionale competitie 25-26 3e klasse A maart Wednesday 1 October 2025 +0–0=1 +2.8
LeiSB regionale competitie 25-26 1e klasse januari 2026 Wednesday 1 October 2025 +0–1=0 -10.8
LeiSB regionale competitie 25-26 1e klasse oktober Wednesday 1 October 2025 +0–1=0 -12.1
KNSB competitie 2025-2026 Klasse 6 ronde 5 Saturday 20 September 2025 +0–0=1 -3.7
KNSB competitie 2025-2026 Klasse 6 ronde 7 Saturday 20 September 2025 +0–0=1 +1.8
KNSB competitie 2025-2026 Klasse 6 ronde 6 Saturday 20 September 2025 +0–0=1 +1.6
KNSB competitie 2025-2026 Klasse 6 ronde 4 Saturday 20 September 2025 +0–1=0 -10.5
KNSB competitie 2025-2026 Klasse 6 Ronde 3 Saturday 20 September 2025 +1–0=0 +5.8
KNSB competitie 2025-2026 Klasse 6 ronde 2 Saturday 20 September 2025 +0–1=0 -8.9
KNSB competitie 2025-2026 Klasse 6 ronde 1 Saturday 20 September 2025 +0–0=1 +4.3
LeiSB competitie 2024-2025 1e 23-1 22-1 Monday 7 October 2024 +0–1=0 -11.7
LeiSB competitie 2024-2025 1e 19-12 22-1 Monday 7 October 2024 +0–1=0 -10.8
LeiSB competitie 2024-2025 1 28-10-24-11 Monday 7 October 2024 +0–1=0 -12.2
KNSB competitie 2024-2025 Klasse 2 ronde 8 Saturday 21 September 2024 +0–1=0 -1.5
KNSB competitie 2024-2025 Klasse 6 ronde 6 Saturday 21 September 2024 +1–0=0 +14.0
KNSB competitie 2024-2025 Klasse 6 ronde 5 Saturday 21 September 2024 +1–0=0
KNSB competitie 2024-2025 Klasse 6 ronde 2 Saturday 21 September 2024 +0–1=0 -5.8
Regionale competitie Leidse Schaakbond 2023 - 2024 1e Klasse 2024-04 Sunday 8 October 2023 +1–0=0 +7.6
Regionale competitie Leidse Schaakbond 2023 - 2024 1e Klasse 2024-03 Sunday 8 October 2023 +1–0=1 +7.9
KNSB competitie 2023-2024 Klasse 6 ronde 7 Saturday 16 September 2023 +1–0=0 +5.4
KNSB competitie 2023-2024 Klasse 6 ronde 6 Saturday 16 September 2023 +1–0=0 +7.1
KNSB competitie 2023-2024 Klasse 6 ronde 5 Saturday 16 September 2023 +0–0=1 +1.6
KNSB competitie 2023-2024 Klasse 6 ronde 4 Saturday 16 September 2023 +1–0=0 +6.8
KNSB competitie 2023-2024 Klasse 6 ronde 2 Saturday 16 September 2023 +0–1=0 -6.3
KNSB competitie 2023-2024 Klasse 6 ronde 1 Saturday 16 September 2023 +0–0=1 -3.4
Regionale competitie LeiSB 2022-2023 1e Klasse mei 2023 Saturday 1 October 2022 +1–0=0 +8.2
KNSB competitie 2022-2023 Klasse 6 ronde 6 Saturday 17 September 2022 +0–0=1 -5.7
KNSB competitie 2022-2023 Klasse 6 ronde 5 Saturday 17 September 2022 +1–0=0 +1.1
KNSB competitie 2022-2023 Klasse 6 ronde 4 Saturday 17 September 2022 +1–0=0 +10.3
KNSB competitie 2022-2023 Klasse 6 ronde 3 Saturday 17 September 2022 +0–0=1 -1.8
Tournament 20240510024 +0–1=0 -11.7
Tournament 20231210513 +0–1=1 -20.0

Team Competition

Current team
Leiderdorp 2
Klasse 6I · 2025-2026 · 7 games
Past teams
Leiderdorp 1
Klasse 2B · 2024-2025
Leiderdorp 2
Klasse 6H · 2024-2025
Leiderdorp 2
Klasse 6F · 2023-2024
Leiderdorp 2
Klasse 6D · 2022-2023

Rating History

Loading rating history...

Peak Ratings

Classic 1798 May 1, 2024
Rapid 1735 May 1, 2026
Blitz 1728 March 1, 2026

Games

Wins 14
Losses 12
Draws 11
Win Rate 38%

Performance by Color

Color Wins Draws Losses Win Rate
White 11 7 5 48%
Black 3 4 7 21%

Recent Matches

Noordijk, E.M. (Ed) (1811) Wednesday 22 April 2026 WIN +15.1
Stam, M. (Mick) (1621) Saturday 28 March 2026 DRAW -3.7
Birginia, J.J.E. (Jaden) (1705) Thursday 26 March 2026 WIN +11.7
Lawton, C. (Christopher) (1540) Wednesday 11 March 2026 WIN +6.4
Peper, J.P.C. (Jeroen) (1781) Saturday 7 March 2026 DRAW +1.8
Bos, E. (Evert) (1809) Wednesday 4 March 2026 DRAW +2.8
Swart, D.W. (Dirk-Willem) (1772) Saturday 7 February 2026 DRAW +1.6
Hoogenboom, J.J. (Jan) (1786) Tuesday 6 January 2026 LOSS -10.8
Tjin a Lien, I.T.L. (Ike) (1805) Saturday 13 December 2025 LOSS -10.5
Arafat, S.A. (Serina) (1542) Saturday 22 November 2025 WIN +5.8
Regeer, P.A. (Paul) (1857) Saturday 1 November 2025 LOSS -8.9
Schoonman, I.M. (Ivo) (1770) Friday 17 October 2025 LOSS -12.1
Neering, P. (Paul) (1885) Saturday 4 October 2025 DRAW +4.3
Teianu, S. (Sabin) (2099) Saturday 5 April 2025 LOSS -1.5
Alvares, E.F.S. (Eric) (1788) Saturday 8 March 2025 WIN +14.0
Klaauw van der, S. (Sebastiaan) (1781) Thursday 20 February 2025 LOSS -11.7
Tleis, S. (Saleh) Saturday 8 February 2025 WIN
Muilwijk, M.L. (Marco) (1818) Wednesday 15 January 2025 LOSS -10.8
Jong de, M. (Maarten) (1795) Friday 22 November 2024 LOSS -12.2
Zijll Langhout van, B.W. (Bart) (1997) Saturday 9 November 2024 LOSS -5.8