KNSB FIDE
JK

Jermo Kooijmans

Rated since January 2023

2289 Classic
2297 Rapid
2282 Blitz

RIVALRY

Nemesis
Wilgenhof, O. (Otto)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
MICHIELSEN, J.R. (JOOST) (IM) 2387
6729 KNSB competitie 2022-2023 Klasse 1 ronde 7 · Saturday 11 March 2023
HOPMAN, P. (PIETER) (IM) 2333
11375 85e Daniel Noteboomtoernooi Groep A · Sunday 22 February 2026
CARDON, H.R.A. (HELMUT) (IM) 2258
12590 KNSB competitie 2025-2026 Klasse 1 ronde 5 · Saturday 13 December 2025
ROON VAN, S.W.M.Q. (SJOERD) (FM) 2238
7637 KNSB competitie 2023-2024 Klasse 1 ronde 2 · Saturday 7 October 2023
FREDERIKS, J. (JESSE) 2198
11226 Open Schaakkampioenschap van Arnhem Groep A · Sunday 7 September 2025
Worst losses
GROEP VAN DE, W. (WILLIAM) 1999
10278 OSBO Snelschaakkampioenschap 2025 Finale B · Saturday 4 January 2025
CASTELEIJN, D.J. (DIEDERICK) 2018
6232 KNSB competitie 2022-2023 Klasse 1 ronde 5 · Saturday 17 December 2022
KOPPENENS, O.M. (OSCAR) 2045
11375 85e Daniel Noteboomtoernooi Groep A · Friday 20 February 2026
BUS, T.G. (TOM) (CM) 2064
9974 OSBO Snelschaakkampioenschap 2025 Voorrondes · Saturday 4 January 2025
OOREBEEK, E. (ERWIN) 2099
9640 KNSB competitie 2024-2025 Klasse 1 ronde 2 · Saturday 12 October 2024
85e Daniel Noteboomtoernooi Groep A Friday 20 February 2026 +3–1=2 -6.6
Open Schaakkampioenschap van Arnhem Groep A Friday 5 September 2025 +3–0=3 -1.9
OSBO Snelschaakkampioenschap 2025 Voorrondes Saturday 4 January 2025 +6–1=2 -6.1
OSBO Snelschaakkampioenschap 2025 Finale B Saturday 4 January 2025 +12–1=3 +6.1
KNSB competitie 2025-2026 Klasse 1 ronde 7 Saturday 20 September 2025 +0–1=0 -4.4
KNSB competitie 2025-2026 Klasse 1 ronde 5 Saturday 20 September 2025 +1–0=0 +7.0
KNSB competitie 2025-2026 Klasse 1 Ronde 4 Saturday 20 September 2025 +1–0=0 +4.8
KNSB competitie 2025-2026 Klasse 1 ronde 3 Saturday 20 September 2025 +0–1=0 -6.6
KNSB competitie 2025-2026 Klasse 1 ronde 2 Saturday 20 September 2025 +0–1=0 -7.0
KNSB competitie 2025-2026 Klasse 1 ronde 1 Saturday 20 September 2025 +0–0=1 +0.3
SOS competitie 2025/2026 Lijst 1 mrt Monday 1 September 2025 +1–0=0 +0.5
SOS competitie 2025/2026 Lijst 1 feb Monday 1 September 2025 +1–0=0 +1.2
SOS competitie 2025/2026 Lijst 1 jan Monday 1 September 2025 +1–0=0 +1.2
SOS competitie 2025/2026 Lijst 1 Dec Monday 1 September 2025 +1–0=0 +0.7
SOS competitie 2025/2026 Lijst 1 Nov Monday 1 September 2025 +1–0=0 +0.4
Rapidtoernooi bij het Open NK Groep A Saturday 26 July 2025 +4–1=2 -4.8
KNSB competitie 2024-2025 Klasse 1 ronde 9 Saturday 21 September 2024 +1–0=0 +4.5
KNSB competitie 2024-2025 Klasse 1 ronde 8 Saturday 21 September 2024 +1–0=0 +4.7
KNSB competitie 2024-2025 Klasse 1 ronde 7 Saturday 21 September 2024 +0–0=1 +2.5
KNSB competitie 2024-2025 Klasse 1 ronde 6 Saturday 21 September 2024 +1–0=0 +5.8
KNSB competitie 2024-2025 Klasse 1 ronde 5 Saturday 21 September 2024 +0–1=0 -8.1
KNSB competitie 2024-2025 Klasse 1 ronde 4 Saturday 21 September 2024 +0–0=1 -4.7
KNSB competitie 2024-2025 Klasse 1 ronde 3 Saturday 21 September 2024 +0–0=1 -6.0
KNSB competitie 2024-2025 Klasse 1 ronde 2 Saturday 21 September 2024 +0–1=0 -11.1
KNSB competitie 2024-2025 Klasse 1 ronde 1 Saturday 21 September 2024 +0–0=1 +3.7
SOS Competitie 2024/2025 2025-04 Sunday 1 September 2024 +1–0=0 +1.1
SOS Competitie 2024/2025 2025-03 Sunday 1 September 2024 +1–0=0 +0.6
SOS Competitie 2024/2025 2025-02 Sunday 1 September 2024 +1–0=0 +0.4
SOS Competitie 2024/2025 2024-12 Sunday 1 September 2024 +1–0=0 +0.1
SOS Competitie 2024/2025 2024-11 Sunday 1 September 2024 +1–0=0 +1.1
SOS Competitie 2024/2025 2024-10 Sunday 1 September 2024 +1–0=0 +0.2
KNSB competitie 2023-2024 Klasse 1 ronde 9 Saturday 16 September 2023 +1–0=0 +5.0
KNSB competitie 2023-2024 Klasse 1 ronde 8 Saturday 16 September 2023 +0–0=1 -4.1
KNSB competitie 2023-2024 Klasse 1 ronde 7 Saturday 16 September 2023 +0–0=1 -2.8
KNSB competitie 2023-2024 Klasse 1 ronde 6 Saturday 16 September 2023 +1–0=0 +5.3
KNSB competitie 2023-2024 Klasse 1 ronde 5 Saturday 16 September 2023 +0–0=1 -5.3
KNSB competitie 2023-2024 Klasse 1 ronde 4 Saturday 16 September 2023 +0–0=1 -2.6
KNSB competitie 2023-2024 Klasse 1 ronde 3 Saturday 16 September 2023 +0–0=1 -5.7
KNSB competitie 2023-2024 Klasse 1 ronde 2 Saturday 16 September 2023 +1–0=0 +6.2
KNSB competitie 2023-2024 Klasse 1 ronde 1 Saturday 16 September 2023 +0–1=0 -8.0
SOS Competitie 2023/2024 Maart 2024 Friday 1 September 2023 +1–0=0 +1.6
SOS Competitie 2023/2024 Februari 2024 Friday 1 September 2023 +1–0=0 +0.5
SOS Competitie 2023/2024 Januari 2024 Friday 1 September 2023 +1–0=0 +3.8
SOS Competitie 2023/2024 November 2023 Friday 1 September 2023 +1–0=0 +3.2
SOS Competitie 2023/2024 September 2023 Friday 1 September 2023 +1–0=0 +0.2
KNSB competitie 2022-2023 Klasse 1 ronde 9 Saturday 17 September 2022 +0–1=0 -10.7
KNSB competitie 2022-2023 Klasse 1 ronde 8 Saturday 17 September 2022 +0–1=0 -3.4
KNSB competitie 2022-2023 Klasse 1 ronde 7 Saturday 17 September 2022 +1–0=0 +8.6
KNSB competitie 2022-2023 Klasse 1 ronde 6 Saturday 17 September 2022 +1–0=0 +2.9
KNSB competitie 2022-2023 Klasse 1 ronde 5 Saturday 17 September 2022 +0–1=0 -11.9
SOS Competitie 2022/2023 April 2023(K1) Monday 12 September 2022 +1–0=0 +0.2
SOS Competitie 2022/2023 Maart 2023(K1) Monday 12 September 2022 +1–0=0 +0.7
SOS Competitie 2022/2023 Januari 2023 Monday 12 September 2022 +1–0=0 +0.6

Rating History

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Peak Ratings

Classic 2323 April 1, 2023
Rapid 2297 Aug. 1, 2025
Blitz 2282 Feb. 1, 2025

Games

Wins 57
Losses 13
Draws 22
Win Rate 62%

Performance by Color

Color Wins Draws Losses Win Rate
White 34 10 7 67%
Black 23 12 6 56%

Recent Matches

IM Hopman, P. (Pieter) (2333) Sunday 22 February 2026 WIN +8.1
Teianu, S. (Sabin) (2088) Sunday 22 February 2026 DRAW -4.1
Boeren, J.F. (Jurriaan) (2175) Saturday 21 February 2026 WIN +4.9
Janse, P.N. (Paul) (2025) Saturday 21 February 2026 WIN +2.5
Cordes, J.J. (Jule) (1940) Friday 20 February 2026 DRAW -5.9
Koppenens, O.M. (Oscar) (2045) Friday 20 February 2026 LOSS -12.2
Blom, H.J. (Huub) (1781) Thursday 12 February 2026 WIN +0.5
IM Admiraal, M. (Miguoel) (2454) Saturday 7 February 2026 LOSS -4.4
Bakker, T. (Thijmen) (1892) Thursday 22 January 2026 WIN +1.2
IM Cardon, H.R.A. (Helmut) (2258) Saturday 13 December 2025 WIN +7.0
Brouwers, S.G.M.A. (Stefan) (1887) Friday 28 November 2025 WIN +1.2
Schelvis, R.J.H. (Richard) (2152) Saturday 22 November 2025 WIN +4.8
Gerrits, G. (Gerrit) (1813) Thursday 13 November 2025 WIN +0.7
IM Lopez, J.J. (Jasel Justo) (2345) Saturday 1 November 2025 LOSS -6.6
Beelen van, J.H. (Jaap-Hille) (1760) Thursday 9 October 2025 WIN +0.4
FM Damen, J.M. (Jip) (2322) Saturday 4 October 2025 LOSS -7.0
FM Freeke, M.F. (Matthieu) (2316) Saturday 20 September 2025 DRAW +0.3
Frederiks, J. (Jesse) (2198) Sunday 7 September 2025 WIN +5.3
Chua, E.Y.T. (Ethan) (2078) Sunday 7 September 2025 WIN +3.2
Aengenheister, D. (Dennis) (1990) Saturday 6 September 2025 WIN +2.1