KNSB FIDE
HJ

Harmen Jonkman

Rated since April 2003

2287 Classical
2351 Rapid
2368 Blitz

The good & the bad

Best wins
GRAW, CHRISTOPHER, DR. 2221
NRW-Klasse Gruppe 2 2025-2026 Maerz 2026 · 2026-03-15
MIKELADZE, BERDIA 2119
NRW-Klasse Gruppe 2 2025-2026 Dezember 2025 · 2025-12-14
SAKSHAM, WADHWA 2063
23rd Bangkok Chess Club Open 2026 · 2026-04-11
NIHIRA, KOUL 1998
23rd Bangkok Chess Club Open 2026 · 2026-04-11
MANSUROVA, MUMTOZBEGIM 1927
23rd Bangkok Chess Club Open 2026 · 2026-04-11
Worst losses
BOLASHAKOV, NURALI (CM) 2072
23rd Bangkok Chess Club Open 2026 · 2026-04-11
BERSAMINA, PAULO (IM) 2434
23rd Bangkok Chess Club Open 2026 · 2026-04-11

FIDE Tournaments

23rd Bangkok Chess Club Open 2026 2026-04-11 +3–2=4 -22.5
NRW-Klasse Gruppe 2 2025-2026 Maerz 2026 2026-03-15 +1–0=0 +3.8
NRW-Klasse Gruppe 2 2025-2026 Februar 2026 2026-02-01 +0–0=1 -1.0
NRW-Klasse Gruppe 2 2025-2026 Dezember 2025 2025-12-14 +1–0=0 +2.6
NRW-Klasse Gruppe 2 2025-2026 Maerz 2026 Sunday 15 March 2026 +1–0=0 +5.5
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

Rating History

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Peak Ratings

Classical 2470
Rapid 2377
Blitz 2402

Games

Wins 5
Losses 2
Draws 5
Win Rate 42%

Performance by Color

Color Wins Draws Losses Win Rate
White 4 2 1 57%
Black 1 3 1 20%

All-time Games (from rating history)

Classical 813
Rapid 6
Blitz 10

Recent Matches

Mansurova, Mumtozbegim (1927) 2026-04-11 WIN +0.9
Teo, Hong Ming 2026-04-11 DRAW -4.2
Adharva, P T (1921) 2026-04-11 DRAW -4.1
Poberezovsky, Daniel 2026-04-11 DRAW -4.2
Saksham, Wadhwa (2063) 2026-04-11 WIN +1.9
IM Bersamina, Paulo (2434) 2026-04-11 LOSS -3.3
CM Ulan, Rizat (2081) 2026-04-11 DRAW -2.9
CM Bolashakov, Nurali (2072) 2026-04-11 LOSS -8.0
Nihira, Koul (1998) 2026-04-11 WIN +1.4
Graw, Christopher, Dr. (2221) 2026-03-15 WIN +3.8
CM Mamedov, Aflatun (2235) 2026-02-01 DRAW -1.0
Mikeladze, Berdia (2119) 2025-12-14 WIN +2.6