KNSB FIDE
HJ

Harmen Jonkman

Rated since January 2023

2284 Classic
2300 Rapid
2314 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
ROEBERS, E. (ELINE) (IM) 2357
6354 82e Noteboomtoernooi Groep A · Sunday 26 February 2023
ZLATKOV, ANTON (FM) 2323
39th European Club Cup · Tuesday 22 October 2024
FOREEST VAN, M. (MACHTELD) (FM) 2288
6354 82e Noteboomtoernooi Groep A · Saturday 25 February 2023
BERG VAN DEN, H.T.W. (HILKE) 2284
10068 KNSB competitie 2024-2025 Klasse 1 ronde 5 · Saturday 14 December 2024
MAISURADZE, NINO (WGM) 2270
II Chessable Sunway Formentera Chess Festival 2023 Grup A · Friday 28 April 2023
Worst losses
HAUG, SIEGMUND 1825
39. Open Untergrombach · Tuesday 3 January 2023
BOLASHAKOV, NURALI (CM) 2072
23rd Bangkok Chess Club Open 2026 · Saturday 18 April 2026
GALLAS, NOEL 2095
Oberliga NRW 2024-2025 November 2024 · Sunday 10 November 2024
GALLASCH, ROBIN 2104
Oberliga NRW 2024-2025 Dezember 2024 · Sunday 8 December 2024
WEGGEN, J.V. (JEROEN) 2167
11849 KNSB competitie 2025-2026 Klasse 1 ronde 1 · Saturday 20 September 2025
NRW-Klasse Gruppe 2 2025-2026 Mai 2026 Sunday 3 May 2026 +1–0=0 +2.5
23rd Bangkok Chess Club Open 2026 Saturday 11 April 2026 +3–2=4 -33.2
NRW-Klasse Gruppe 2 2025-2026 Maerz 2026 Sunday 15 March 2026 +1–0=0 +5.5
NRW-Klasse Gruppe 2 2025-2026 Februar 2026 Sunday 1 February 2026 +0–0=1 -1.5
NRW-Klasse Gruppe 2 2025-2026 Dezember 2025 Sunday 14 December 2025 +1–0=0 +4.0
NRW-Klasse Gruppe 2 2025-2026 November 2025 Sunday 2 November 2025 +1–0=0 +5.0
2. Bundesliga Nord 2025-2026 September 2025 Saturday 27 September 2025 +1–0=1 +3.6
39th European Club Cup Sunday 20 October 2024 +3–4=0 -7.1
53eme Open Fide de Gonfreville l'Orcher Trophee Claude Leroyer (-2400) Saturday 30 March 2024 +4–2=1 -9.1
15e BPB Limburg Open 2023 Groep A Friday 26 May 2023 +3–1=3 +7.4
Open Kampioenschap van Utrecht Groep A Friday 19 May 2023 +3–1=2 -1.7
NRW-Klasse Gruppe 2 2025-2026 Oktober 2025 Sunday 12 October 2025 +1–0=0 +3.6
KNSB competitie 2025-2026 Klasse 1 Ronde 4 Saturday 20 September 2025 +0–0=1 -1.0
KNSB competitie 2025-2026 Klasse 1 ronde 3 Saturday 20 September 2025 +0–0=1 +3.3
KNSB competitie 2025-2026 Klasse 1 ronde 2 Saturday 20 September 2025 +1–0=0 +5.4
KNSB competitie 2025-2026 Klasse 1 ronde 1 Saturday 20 September 2025 +0–1=0 -10.3
Oberliga NRW 2024-2025 Mai 2025 Saturday 3 May 2025 +1–0=0 +2.9
Oberliga NRW 2024-2025 Februar 2025 Saturday 8 February 2025 +1–0=0 +4.1
Oberliga NRW 2024-2025 Dezember 2024 Sunday 1 December 2024 +1–1=1 -9.4
Oberliga NRW 2024-2025 November 2024 Saturday 9 November 2024 +1–1=0 -7.9
KNSB competitie 2024-2025 Klasse 1 ronde 9 Saturday 21 September 2024 +0–0=1 -0.9
KNSB competitie 2024-2025 Klasse 1 ronde 8 Saturday 21 September 2024 +0–0=1 -1.4
KNSB competitie 2024-2025 Klasse 1 ronde 7 Saturday 21 September 2024 +0–1=0 -9.4
KNSB competitie 2024-2025 Klasse 1 ronde 6 Saturday 21 September 2024 +0–0=1 -1.0
KNSB competitie 2024-2025 Klasse 1 ronde 5 Saturday 21 September 2024 +1–0=0 +6.7
KNSB competitie 2024-2025 Klasse 1 ronde 4 Saturday 21 September 2024 +1–0=0 +3.4
Oberliga NRW 2023-2024 April 2024 Sunday 7 April 2024 +0–0=2 -5.4
Oberliga NRW 2023-2024 March 2024 Sunday 10 March 2024 +0–1=0 -7.3
Oberliga NRW 2023-2024 February 2024 Sunday 18 February 2024 +1–0=0 +0.7
Oberliga NRW 2023-2024 January 2024 Sunday 28 January 2024 +1–0=0 +0.2
Oberliga NRW 2023-2024 September 2023 Sunday 3 September 2023 +2–0=0 +6.1
I Torneo Internacional Orillas de Mar Sunday 25 June 2023 +4–2=3 -11.0
NRW-Viererpokal 2023 Zwischenrunde Saturday 17 June 2023 +0–0=1 -2.0
II Chessable Sunway Formentera Chess Festival 2023 Grup A Tuesday 18 April 2023 +4–4=2 +1.2
Oberliga NRW 2022-2023 April 2023 Sunday 16 April 2023 +1–0=0 +4.2
Oberliga NRW 2022-2023 March 2023 Sunday 5 March 2023 +1–0=0 +3.4
82e Noteboomtoernooi Groep A Friday 24 February 2023 +5–1=0 +20.8
Oberliga NRW 2022-2023 February 2023 Sunday 12 February 2023 +0–1=0 -8.8
39. Open Untergrombach Tuesday 3 January 2023 +5–1=1 -10.8
Oberliga NRW 2022-2023 November 2022 Sunday 6 November 2022 +0–0=1 -1.8

Team Competition

Current team
Magnus 1
Klasse 1A · 2025-2026 · 4 games
Past teams
Wokke Vastg.-Autovakm. Schaap 1
Klasse 1A · 2024-2025
BSG 1
Klasse 1B · 2021-2022

Rating History

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Peak Ratings

Classic 2341 July 1, 2023
Rapid 2314 March 1, 2026
Blitz 2314 March 1, 2026

Games

Wins 53
Losses 24
Draws 28
Win Rate 50%

Performance by Color

Color Wins Draws Losses Win Rate
White 23 19 11 43%
Black 30 9 13 58%

Recent Matches

Dahm, Bernd (2047) Sunday 3 May 2026 WIN +2.5
WCM Nihira Koul (1998) Sunday 19 April 2026 WIN +2.0
CM Bolashakov, Nurali (2072) Saturday 18 April 2026 LOSS -11.6
CM Ulan, Rizat (2080) Friday 17 April 2026 DRAW -4.2
IM Bersamina, Paulo (2434) Thursday 16 April 2026 LOSS -4.8
Saksham Wadhwa (2063) Wednesday 15 April 2026 WIN +2.9
Poberezovsky, Daniel (1883) Tuesday 14 April 2026 DRAW -6.3
Adharva P T (1920) Monday 13 April 2026 DRAW -6.0
Teo, Hong Ming (1862) Sunday 12 April 2026 DRAW -6.4
WCM Mansurova, Mumtozbegim (1926) Saturday 11 April 2026 WIN +1.3
Graw, Christopher, Dr. (2221) Sunday 15 March 2026 WIN +5.5
CM Mamedov, Aflatun (2235) Sunday 1 February 2026 DRAW -1.5
Mikeladze, Berdia (2119) Sunday 14 December 2025 WIN +4.0
FM Krudde, F. (Fitzgerald) (2248) Saturday 22 November 2025 DRAW -1.0
Korth, Daniel (2166) Sunday 2 November 2025 WIN +5.0
IM Lai, H.T. (Hing Ting) (2454) Saturday 1 November 2025 DRAW +3.3
Voss, G. (Gunther) (2073) Sunday 12 October 2025 WIN +3.6
Markuszewski, M. (Maksymilian) (2171) Saturday 4 October 2025 WIN +5.4
FM Nechitaylo, Nikita (2227) Sunday 28 September 2025 DRAW -1.4
WIM Schoene, Maria (2171) Saturday 27 September 2025 WIN +5.1