KNSB FIDE
JK

Jasper Kools

Rated since January 2023

1950 Classic
1943 Rapid
1963 Blitz

RIVALRY

Nemesis
Plasmans, B.L.P.A. (Bart)
Games: 3 · Win rate: 33%
Kryptonite
Becx, C. (César)
Games: 3 · Win rate: 0%
Easy Target
Stuart, A.J. (Toon)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
BRUMMELEN VAN, K.B. (KEVIN) 2184
7838 Amsterdam Chess Open Groep A · Friday 1 November 2024
SCHRÖER, M.J. (MARCEL) 2101
8992 HSG Open 2024 Groep A · Friday 21 June 2024
KURT, S. (SASCHA) 2087
9207 NBSB Competitie 2023/2024 2e helft Groep A · Tuesday 12 March 2024
NIET DE, G.M. (GERT-MICHIEL) 2076
8016 83e Noteboomtoernooi Groep A · Friday 16 February 2024
VRIES DE, L.J.A. (LEON) 2066
7251 49e Open Kampioenschap van Utrecht Groep A · Friday 10 May 2024
Worst losses
BOLDYRIEV, MYKHAILO 1366
Sparkassen Chess Trophy 2023 B-Open · Tuesday 27 June 2023
MUELLER, MARCUS 1566
Sparkassen Chess Trophy 2023 B-Open · Wednesday 28 June 2023
TEPE, T. (THOMAS) 1632
7734 Stukkenjagers Open Groep A · Wednesday 25 October 2023
DHOOGE, S. (SERVAAS) 1691
Wachtebeke Winter Round Robin 2024 Group D · Monday 12 February 2024
KUDERNAC, T. (THEO) 1729
10544 Hoogeveen Schaaktoernooi Middag · Wednesday 22 October 2025
16e WLC Weekendtoernooi Groep A Friday 8 May 2026 +1–2=2 +13.7
Tata Steel Chess Tournament 2026 Weekendvierkampem Friday 16 January 2026 +3–0=0 +33.7
Hoogeveen Schaaktoernooi Ochtend Saturday 18 October 2025 +4–3=0 -42.3
Hoogeveen Schaaktoernooi Middag Saturday 18 October 2025 +4–3=1 -29.9
27e HZ University of Applied Sciences Schaaktoernooi Groep A Saturday 2 August 2025 +4–4=1 -20.5
Open NK Schaken 2025 Zesrondig 1 Tuesday 22 July 2025 +3–1=2 +32.6
HSG Open 2025 Groep A Friday 20 June 2025 +1–3=1 -12.3
17e BPB Limburg Open 2025 Groep B Friday 6 June 2025 +3–1=3 +15.9
Tata Steel Chess Tournament 2025 Tienkampen Friday 17 January 2025 +3–2=3 -4.4
Tata Steel Chess Tournament 2025 Weekendvierkampen Friday 17 January 2025 +1–1=1 -6.3
Chess Festival Groningen Open B Saturday 21 December 2024 +3–4=2 -55.5
Amsterdam Chess Open Groep A Friday 1 November 2024 +1–2=3 +18.0
HZ University of Applied Sciences Schaaktoernooi Groep A Saturday 3 August 2024 +5–4=0 +16.1
HSG Open 2024 Groep A Friday 21 June 2024 +1–2=0 +3.5
Tata Steel Chess Tournament 2024 Weekendvierkampen Friday 12 January 2024 +0–1=2 -8.3
HZ University of Applied Sciences Schaaktoernooi Groep A Saturday 5 August 2023 +3–4=2 -7.0
Chessable Open NK 2023 Reserve A Monday 24 July 2023 +2–3=4 +30.8
15e BPB Limburg Open 2023 Groep B Friday 26 May 2023 +2–5=0 -20.9
13e WLC Weekendtoernooi Groep A Friday 5 May 2023 +1–3=2 -9.0
Tata Steel Chess Tournament 2023 Weekendvierkampen Friday 13 January 2023 +0–1=2 -6.6
NBSB Avondcompetitie 2025-2026 Ronde 7 Monday 22 September 2025 +0–1=0 -10.4
NBSB Avondcompetitie 2025-2026 Ronde 6 Monday 22 September 2025 +1–0=0 +5.7
NBSB Avondcompetitie 2025-2026 Ronde 5 Monday 22 September 2025 +0–0=1 -3.3
NBSB Beker A 2025-2026 Ronde 3 Monday 22 September 2025 +0–0=1 +2.9
NBSB Beker A 2025-2026 Ronde 2 Monday 22 September 2025 +0–0=1 +1.3
NBSB Beker A 2025-2026 Groep A Monday 22 September 2025 +1–0=0 +11.6
NBSB Avondcompetitie 2025-2026 Ronde 1 Monday 22 September 2025 +1–0=0 +13.1
KNSB competitie 2025-2026 Klasse 2 ronde 9 Saturday 20 September 2025 +0–1=0 -7.1
KNSB competitie 2025-2026 Klasse 2 ronde 6 Saturday 20 September 2025 +0–0=1 +2.4
KNSB competitie 2025-2026 Klasse 2 ronde 7 Saturday 20 September 2025 +0–1=0 -6.2
KNSB competitie 2025-2026 Klasse 2 Ronde 4 Saturday 20 September 2025 +0–1=0 -8.4
KNSB competitie 2025-2026 Klasse 2 ronde 3 Saturday 20 September 2025 +0–0=1 +3.3
KNSB competitie 2025-2026 Klasse 2 ronde 2 Saturday 20 September 2025 +0–1=0 -3.3
KNSB competitie 2025-2026 Klasse 2 ronde 1 Saturday 20 September 2025 +0–1=0 -9.6
Cocoon 2025 Open Saturday 6 September 2025 +3–5=0 -6.1
Open NK Schaken 2025 Vierkampen Tuesday 22 July 2025 +1–1=0 +0.1
Stukkenjagers Open Ronde 9 Wednesday 9 October 2024 +1–0=0 +8.6
Stukkenjagers Open Ronde 8 Wednesday 9 October 2024 +1–0=0 +7.6
Stukkenjagers Open Ronde 6 & 7 Wednesday 9 October 2024 +0–2=0 -29.8
Stukkenjagers Open Stukkenjagers Open ronde 5 Wednesday 9 October 2024 +1–0=0 +7.4
Stukkenjagers Open Ronde 3 Wednesday 9 October 2024 +0–0=1 -2.5
Stukkenjagers Open Ronde 2 Wednesday 9 October 2024 +1–0=0 +2.4
Stukkenjagers Open Ronde 1 Wednesday 9 October 2024 +0–0=1 -4.7
NBSB Avondcompetitie 2024-2025 Ronde 7 Monday 30 September 2024 +1–0=0 +11.4
NBSB Avondcompetitie 2024-2025 Ronde 6 Monday 30 September 2024 +0–1=0 -6.4
NBSB Avondcompetitie 2024-2025 Ronde 5 Monday 30 September 2024 +0–0=1 -2.6
NBSB Avondcompetitie 2024-2025 Ronde 4 Monday 30 September 2024 +0–1=0 -7.8
NBSB Avondcompetitie 2024-2025 Ronde 3 Monday 30 September 2024 +0–1=0 -13.7
NBSB Avondcompetitie 2024-2025 Ronde 2 Monday 30 September 2024 +1–0=0 +13.2
KNSB competitie 2024-2025 Klasse 4 ronde 5 Saturday 21 September 2024 +1–0=0 +9.5
KNSB competitie 2024-2025 Klasse 4 ronde 4 Saturday 21 September 2024 +1–0=0 +8.2
KNSB competitie 2024-2025 Klasse 4 ronde 3 Saturday 21 September 2024 +1–0=0 +10.3
KNSB competitie 2024-2025 Klasse 4 ronde 2 Saturday 21 September 2024 +0–1=0 -15.0
KNSB competitie 2024-2025 Klasse 4 ronde 1 Saturday 21 September 2024 +0–0=1 -0.7
Snelschaak (tijdens NK 2024) Wednesday 10 July 2024 +7–9=0 -61.7
49e Open Kampioenschap van Utrecht Groep A Friday 10 May 2024 +1–2=3 +21.4
TAPIJTGIGANT OPEN ASK 2024 Groep A Saturday 30 March 2024 +2–3=1 -1.3
83e Noteboomtoernooi Groep A Friday 16 February 2024 +2–2=2 +40.7
Wachtebeke Winter Round Robin 2024 Group D Saturday 10 February 2024 +3–1=5 -18.1
NBSB Competitie 2023/2024 2e helft Groep A Sunday 24 December 2023 +3–1=0 +36.6
Stukkenjagers Open Stukkenjagers Open ronde 9 Wednesday 4 October 2023 +1–0=0 +8.8
Stukkenjagers Open Stukkenjagers Open ronde 8 Wednesday 4 October 2023 +0–0=1 -2.3
Stukkenjagers Open Stukkenjagers Open ronde 7 Wednesday 4 October 2023 +1–0=0 +2.8
Stukkenjagers Open Stukkenjagers Open ronde 6 Wednesday 4 October 2023 +1–0=0 +1.2
Stukkenjagers Open Stukkenjagers Open ronde 5 & 6 Wednesday 4 October 2023 +0–1=0 -18.4
Stukkenjagers Open Stukkenjagers Open ronde 4 Wednesday 4 October 2023 +1–0=0 +7.3
Stukkenjagers Open Stukkenjagers Open ronde 3 Wednesday 4 October 2023 +1–0=0 +5.7
Stukkenjagers Open Groep A Wednesday 4 October 2023 +0–2=0 -20.8
KNSB competitie 2023-2024 Klasse 4 ronde 8 Saturday 16 September 2023 +0–1=0 -7.3
KNSB competitie 2023-2024 Klasse 4 ronde 6 Saturday 16 September 2023 +1–0=0 +5.7
KNSB competitie 2023-2024 Klasse 4 ronde 5 Saturday 16 September 2023 +1–0=0 +15.0
KNSB competitie 2023-2024 Klasse 4 ronde 4 Saturday 16 September 2023 +1–0=0 +12.3
KNSB competitie 2023-2024 Klasse 4 ronde 3 Saturday 16 September 2023 +0–0=1 +0.4
KNSB competitie 2023-2024 Klasse 4 ronde 2 Saturday 16 September 2023 +1–0=0 +14.9
KNSB competitie 2023-2024 Klasse 4 ronde 1 Saturday 16 September 2023 +1–0=0 +12.4
NBSB competitie 2023/2024 Groep A Friday 1 September 2023 +3–0=0 +32.7
Goirles Weekend Kampioenschap 2023 Groep B Friday 25 August 2023 +4–0=2 +39.3
Sparkassen Chess Trophy 2023 B-Open Saturday 24 June 2023 +4–2=1 -35.2
TAPIJTGIGANT OPEN ASK 2023 Groep B Friday 24 March 2023 +1–1=4 -16.6
NBSB competitie 2023 Groep A Sunday 1 January 2023 +1–1=1 -3.6
Stukkenjagers Open Ronde 7 t/m 9 Wednesday 12 October 2022 +0–1=1 -9.7
Stukkenjagers Open Ronde 4 t/m 6 Wednesday 12 October 2022 +2–1=0 +7.5
Stukkenjagers Open Groep A Wednesday 12 October 2022 +2–0=1 +14.4
KNSB competitie 2022-2023 Klasse 4 ronde 9 Saturday 17 September 2022 +0–0=1 -4.1
KNSB competitie 2022-2023 Klasse 4 ronde 8 Saturday 17 September 2022 +0–1=0 -9.2
KNSB competitie 2022-2023 Klasse 4 ronde 7 Saturday 17 September 2022 +0–1=0 -10.4
KNSB competitie 2022-2023 Klasse 4 ronde 4 Saturday 17 September 2022 +1–0=0 +10.3
NBSB Competitie Groep A Wednesday 14 September 2022 +3–1=0 +12.8

Team Competition

Current teams
EGS
Beker A · 2025-2026 · 3 games
EGS A
Avond A1 · 2025-2026 · 4 games
KiNG 1
Klasse 2C · 2025-2026 · 7 games
Past teams
EGS 1
Klasse 4I · 2024-2025
EGS A
Avond Hoofdklasse · 2024-2025
EGS
Beker A · 2023-2024
EGS 1
Klasse 4G · 2023-2024
EGS A
Avond Hoofdklasse · 2023-2024
EGS
Beker A · 2022-2023
EGS 1
Klasse 4G · 2022-2023
EGS A
Avond 1A · 2022-2023
EGS 1
Klasse 3G · 2021-2022
EGS A
Avond 1B · 2021-2022
EGS
Beker A · 2019-2020
EGS A
Avond B1 · 2019-2020
EGS B
Avond B2 · 2019-2020
EGS
Beker B · 2018-2019
EGS B
Avond C2 · 2018-2019
De Drie Torens B
Avond C2 · 2017-2018
DSC B
Avond C2 · 2017-2018
EGS 1
Promotieklasse · 2017-2018
EGS 2
Klasse 3A · 2017-2018

Rating History

Loading rating history...

Peak Ratings

Classic 2054 Dec. 1, 2024
Rapid 1949 March 1, 2026
Blitz 1963 Oct. 1, 2024

Games

Wins 110
Losses 98
Draws 64
Win Rate 40%

Performance by Color

Color Wins Draws Losses Win Rate
White 57 37 44 41%
Black 53 27 54 40%

Recent Matches

Bhattacharjee, S. (Sourav) (2183) Sunday 10 May 2026 LOSS -4.8
Messaoudi, N.S.A. (Nino) (2001) Sunday 10 May 2026 WIN +14.8
Zon van, P.A.C. (Paul) (1999) Saturday 9 May 2026 DRAW +2.2
Pathak, R. (Raghav) (2174) Saturday 9 May 2026 LOSS -5.1
Thijssen, F.H. (Freek) (2143) Friday 8 May 2026 DRAW +6.6
Schleipfenbauer, B. (Bent) (2106) Saturday 11 April 2026 LOSS -7.1
Vries de, F. (Fabian) (2019) Saturday 28 March 2026 DRAW +2.4
Kroot, A.J.L. (Ad) (2010) Thursday 19 March 2026 LOSS -10.4
Demmers, P.J. (Pieter-Jan) (1741) Tuesday 24 February 2026 WIN +5.7
Cnossen, W.W. (Wiebe) (2149) Saturday 7 February 2026 LOSS -6.2
Hopman-Been, R. (Rob) (1859) Friday 6 February 2026 DRAW -3.3
Bodemeijer, R. (Reinier) (1871) Sunday 18 January 2026 WIN +10.9
Brand, B.J.L.M. (Berry) (1842) Saturday 17 January 2026 WIN +9.9
Aldenberg, H. (Hendrik) (1930) Friday 16 January 2026 WIN +12.9
Meurs van, R. (Rob) (2002) Saturday 20 December 2025 DRAW +2.9
Manders, R. (Robbie) (2043) Saturday 22 November 2025 LOSS -8.4
Matthijssen, M. (Mitchell) (1959) Saturday 8 November 2025 DRAW +1.3
Put van de, J.W.P. (Jeroen) (2017) Saturday 1 November 2025 DRAW +3.3
Kolijn, S. (Simon) (1618) Saturday 25 October 2025 WIN +2.6
Wit de, J. (Jim) (1829) Saturday 25 October 2025 WIN +7.5