KNSB FIDE
JK

Jelle Koopmans

Rated since March 2024

1422 Classic
1346 Rapid
1422 Blitz

RIVALRY

Nemesis
Huisman, J. (Julian)
Games: 10 · Win rate: 50%
Kryptonite
Veen van, J. (Jesper)
Games: 4 · Win rate: 25%
Easy Target
Geel, M.S. (Mees)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
HOEKSTRA, S. (SJOERD) 1593
11959 GP toernooi S.V. Castricum Groep A · Sunday 8 February 2026
GANESH, S. (SRIHARITHRA) 1531
11769 GP Beverwijk Groep A · Sunday 30 November 2025
BRUGGE VAN DE, B. (BOAZ) 1462
11853 GP "Jos Admiraal" Limmen Groep A · Sunday 1 March 2026
CHAN, H.R. (RYAN) 1462
10745 WIJNEN CONSULTANCY GP-Toernooi Purmerend Groep A · Thursday 29 May 2025
HUISMAN, J. (JULIAN) 1428
11853 GP "Jos Admiraal" Limmen Groep A · Sunday 1 March 2026
Worst losses
VERHOEF, R. (RUBEN) 298
7646 Harry Peters Grand Prix Alkmaar Groep A · Sunday 7 January 2024
PEREBOOM, Q. (QUINTEN) 554
Tournament 20240210197 · Sunday 18 February 2024
GREEN, O.E.J. (OTIS) 576
7826 NHSB PK-E Groep A · Saturday 10 February 2024
SMIT, R.S. (RAYAN) 678
7646 Harry Peters Grand Prix Alkmaar Groep A · Sunday 7 January 2024
MALIK, H.A. (HARUN) 848
7826 NHSB PK-E Groep A · Saturday 10 February 2024
No FIDE-rated tournaments found.
NHSB PK-D Groep A Saturday 21 March 2026 +4–3=0 -90.5
GP "Jos Admiraal" Limmen Groep A Sunday 1 March 2026 +2–4=1 -49.3
GP toernooi S.V. Castricum Groep A Sunday 8 February 2026 +2–4=0 -20.5
GP Alkmaar St Pancras Groep A Sunday 4 January 2026 +4–2=0 -11.9
GP Beverwijk Groep A Sunday 30 November 2025 +6–1=0 +110.4
GP Zaanstad Groep A Sunday 16 November 2025 +3–4=0 -8.1
8e Finbotx GP Hoorn Groep A Sunday 19 October 2025 +1–4=2 -65.0
GP HWP Haarlem Groep A Sunday 15 June 2025 +3–3=1 +15.1
WIJNEN CONSULTANCY GP-Toernooi Purmerend Groep A Thursday 29 May 2025 +5–2=0 +41.0
Grand Prix Overdie Alkmaar Groep A Sunday 13 April 2025 +1–5=1 -41.2
GP "Jos Admiraal" Limmen Groep A Sunday 23 March 2025 +4–2=1 +26.6
NHSB PK-E Groep A Sunday 2 March 2025 +5–4=0 -46.8
GP Castricum Groep A Sunday 23 February 2025 +3–3=1 +35.7
Grand Prix Alkmaar Groep A Sunday 5 January 2025 +5–1=1 +72.7
GP Beverwijk Groep A Sunday 15 December 2024 +2–2=1 +15.0
7e Finbotx GP Hoorn Groep A Sunday 20 October 2024 +1–3=3 -40.0
KNSB competitie 2024-2025 Klasse 6 ronde 7 Saturday 21 September 2024 +0–1=0 -22.2
KNSB competitie 2024-2025 Klasse 6 ronde 6 Saturday 21 September 2024 +0–0=1 +82.6
KNSB competitie 2024-2025 Klasse 6 ronde 5 Saturday 21 September 2024 +0–1=0 -99.0
KNSB competitie 2024-2025 Klasse 6 ronde 4 Saturday 21 September 2024 +0–1=0 -14.5
KNSB competitie 2024-2025 Klasse 6 ronde 3 Saturday 21 September 2024 +0–1=0 -12.5
KNSB competitie 2024-2025 Klasse 6 ronde 2 Saturday 21 September 2024 +0–1=0 -18.5
KNSB competitie 2024-2025 Klasse 6 ronde 1 Saturday 21 September 2024 +0–1=0
GrandPrix HWP Haarlem Groep A Sunday 2 June 2024 +3–4=0 -2.2
Medi-Ma GP toernooi Purmerend Groep A Thursday 9 May 2024 +4–1=1 +102.3
GrandPrix AAS Groep A Saturday 13 April 2024 +1–6=0 -97.0
NHSB PK-E Groep A Saturday 10 February 2024 +4–4=1 -88.1
Harry Peters Grand Prix Alkmaar Groep A Sunday 7 January 2024 +5–2=0 -163.0
Tournament 20240210197 +5–1=0 +236.8

Rating History

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Peak Ratings

Classic 1422 April 1, 2026
Rapid 1488 Feb. 1, 2026
Blitz 1422 April 1, 2026

Games

Wins 73
Losses 71
Draws 15
Win Rate 46%

Performance by Color

Color Wins Draws Losses Win Rate
White 41 10 32 49%
Black 32 5 39 42%

Recent Matches

Nibourg, L.J.R. (Lucas) (1210) Saturday 21 March 2026 WIN +6.7
Luxembourg, D. (Dake) (944) Saturday 21 March 2026 WIN +1.2
Kan, L. (Liam) (1047) Saturday 21 March 2026 LOSS -37.5
Ethier, C.J. (Colin) (1154) Saturday 21 March 2026 WIN +4.9
Klaassen, M.H.T. (Milan) (1076) Saturday 21 March 2026 LOSS -37.0
Graaf de, A. (Aiden) (1277) Saturday 21 March 2026 LOSS -30.7
Bozan, O.B. (Omer) (1013) Saturday 21 March 2026 WIN +2.0
Raman, I. (Ishan) (1408) Sunday 1 March 2026 LOSS -24.3
Bakker, S. (Stef) (1423) Sunday 1 March 2026 DRAW -3.5
Nickolson, T. (Thomas) (1433) Sunday 1 March 2026 LOSS -22.9
Brugge van de, B. (Boaz) (1462) Sunday 1 March 2026 WIN +18.7
Karthikeyan, K. (Krishnah) (1479) Sunday 1 March 2026 LOSS -20.4
Veen van, J. (Jesper) (1604) Sunday 1 March 2026 LOSS -13.6
Huisman, J. (Julian) (1428) Sunday 1 March 2026 WIN +16.8
Vinod, J. (Jyotsna) (1599) Sunday 8 February 2026 LOSS -14.0
Neelakantan, D.N. (Dakshesh Nathan) (1611) Sunday 8 February 2026 LOSS -13.3
Brugge van de, B. (Boaz) (1430) Sunday 8 February 2026 WIN +16.8
Badrinath, T. (Tijuvardan) (1498) Sunday 8 February 2026 LOSS -19.4
Sountheranayagam, D. (Deniz) (1555) Sunday 8 February 2026 LOSS -16.3
Hoekstra, S. (Sjoerd) (1593) Sunday 8 February 2026 WIN +25.7