KNSB FIDE
JK

Jelle Koopmans

Rated since March 2024

1487 Classic
1360 Rapid
1422 Blitz

RIVALRY

Nemesis
Bakker, S. (Stef)
Games: 4 · 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
HATTUM VAN, K. (KAREL) 1527
13505 TAPIJTGIGANT OPEN ASK 2026 Groep D · Sunday 5 April 2026
BAAR VAN, C. (COLIN) 1466
13972 GP HWP Haarlem GP HWP Haarlem · Sunday 7 June 2026
BRUGGE VAN DE, B. (BOAZ) 1462
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
TAPIJTGIGANT OPEN ASK 2026 Groep D Saturday 4 April 2026 +2–3=1 +24.6
GP HWP Haarlem GP HWP Haarlem Sunday 7 June 2026 +2–5=0 -61.3
WIJNEN CONSULTANCY GP-Toernooi Purmerend Groep A Thursday 14 May 2026 +5–2=0 +44.6
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

Team Competition

Current team
De Waagtoren 6
Klasse 6F · 2024-2025 · 7 games

Rating History

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Peak Ratings

Classic 1487 Aug. 1, 2026
Rapid 1488 Feb. 1, 2026
Blitz 1422 April 1, 2026

Games

Wins 82
Losses 81
Draws 16
Win Rate 46%

Performance by Color

Color Wins Draws Losses Win Rate
White 47 10 37 50%
Black 35 6 44 41%

Recent Matches

Sotera, G. (Gianni) (1390) Sunday 7 June 2026 LOSS -20.6
Huisman, J. (Julian) (1394) Sunday 7 June 2026 LOSS -20.4
Venstra, T.R. (Thijs) (1334) Sunday 7 June 2026 LOSS -23.7
Veen van 't, M.A. (Marcello) (1465) Sunday 7 June 2026 LOSS -16.5
Baar van, C. (Colin) (1466) Sunday 7 June 2026 WIN +23.6
Deibert, D. (Dani) (1349) Sunday 7 June 2026 WIN +17.1
Terwindt, R. (Roan) (1386) Sunday 7 June 2026 LOSS -20.8
Huisman, J. (Jelte) (1278) Thursday 14 May 2026 WIN +16.2
Huisman, J. (Julian) (1309) Thursday 14 May 2026 LOSS -22.1
Bruinhorst van de, S.C. (Sverre) (1319) Thursday 14 May 2026 LOSS -21.5
Brugge van de, B. (Boaz) (1344) Thursday 14 May 2026 WIN +19.9
Klaassen, M.H.T. (Milan) (1257) Thursday 14 May 2026 WIN +15.1
Deibert, D. (Dani) (1374) Thursday 14 May 2026 WIN +21.6
Baar van, C. (Colin) (1261) Thursday 14 May 2026 WIN +15.3
Jaminon, G.J.R. (Géza) (1523) Monday 6 April 2026 LOSS -31.9
Zander, Daniel (1606) Monday 6 April 2026 LOSS -22.9
Hattum van, K. (Karel) (1527) Sunday 5 April 2026 WIN +56.7
Bergshoeff, G. (Bert) (1613) Sunday 5 April 2026 LOSS -22.2
Kruithof, G. (Glenn) (1289) Saturday 4 April 2026 WIN +28.3
Steur van der, A. (Ad) (1562) Saturday 4 April 2026 DRAW +16.6