JN

Jonah Nieuwenhuis

Rated since November 2023

952 Classic
1481 Rapid

RIVALRY

Nemesis
Boomhouwer, R. (Rens)
Games: 3 · Win rate: 67%
Kryptonite
Mulder, S. (Sven)
Games: 3 · Win rate: 0%
Easy Target
Koolaard, L. (Lieke)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
KERCKHAERT, P. (PIJKE) 1609
10718 KNSB-Jeugdclubcompetitie D halve finales Groep A · Saturday 8 November 2025
MEDENDORP, D. (DANIËL) 1456
11875 GP Haren Groep A · Saturday 13 September 2025
KAPTEIN, V. (VALENTIJN) 1413
13072 GP Hennie Collignon 2026 Groep A · Saturday 31 January 2026
BAYRAM, Y. (YIGIT) 1407
13072 GP Hennie Collignon 2026 Groep A · Saturday 31 January 2026
ESSELBRUGGE, L. (LUCAS) 1333
13072 GP Hennie Collignon 2026 Groep A · Saturday 31 January 2026
Worst losses
KOOI VAN DER, D. (DANIËL) 461
8350 GP Henny Collignon 2024 Groep A · Saturday 27 January 2024
KAPTEIN, V. (VALENTIJN) 483
8350 GP Henny Collignon 2024 Groep A · Saturday 27 January 2024
KUIPERS, T. (TIMO) 485
8449 GP Assen Groep A · Sunday 18 February 2024
SCHULS, N. (NILS) 537
8449 GP Assen Groep A · Sunday 18 February 2024
BOSGRAAF, M. (MATHIJS) 561
8449 GP Assen Groep A · Sunday 18 February 2024
GP Chessfestival Groningen, 2023 Thursday 28 December 2023 +0–7=0 -440.7
GP Hennie Collignon 2026 Groep A Saturday 31 January 2026 +4–2=1 +41.4
KNSB-Jeugdclubcompetitie D halve finales Groep A Saturday 8 November 2025 +1–4=1 -3.4
GP Haren Groep A Saturday 13 September 2025 +1–5=0 -55.3
GP Hoogeveen 2025 Groep A Saturday 17 May 2025 +5–2=0 +67.3
GP Emmen 2025 Groep A Saturday 15 March 2025 +5–1=0 +72.8
NOSBO PJK 2025 PJK D Saturday 11 January 2025 +3–4=0 -9.6
NOSBO JCC JCC D Wednesday 1 January 2025 +3–2=1 +30.7
KNSB-Jeugdclubcompetitie Finale E Groep A Saturday 16 November 2024 +1–5=0 -83.7
GP Ten Boer 2024 Groep A Saturday 2 November 2024 +2–4=0 -31.1
GP Leek/Roden 2024 Groep A Saturday 12 October 2024 +5–1=1 +73.6
KNSB-Jeugdclubcompetitie halve finale E Groep A Saturday 28 September 2024 +5–2=0 +50.8
GP Bob Romijn Haren 2024 Groep A Saturday 1 June 2024 +3–3=1 +9.8
GP Jan Oldenkamp 2024 Groep A Saturday 18 May 2024 +6–1=0 +50.8
GP Emmen 2024 Groep A Saturday 16 March 2024 +4–3=0 -38.1
GP Assen Groep A Sunday 18 February 2024 +4–3=0 +19.0
GP Henny Collignon 2024 Groep A Saturday 27 January 2024 +5–2=0 +91.2
GP Leek-Roden Groep A Saturday 7 October 2023 +6–0=0 +46.1

Rating History

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Peak Ratings

Classic 957 March 1, 2024
Rapid 1481 May 1, 2026

Games

Wins 63
Losses 51
Draws 5
Win Rate 53%

Performance by Color

Color Wins Draws Losses Win Rate
White 33 4 25 53%
Black 30 1 26 53%

Recent Matches

Bezemer, D. (Dennis) (1426) Saturday 31 January 2026 LOSS -18.6
Medendorp, D. (Daniël) (1441) Saturday 31 January 2026 WIN +22.3
Roersma, M. (Melvin) (1386) Saturday 31 January 2026 DRAW -0.8
Esselbrugge, L. (Lucas) (1333) Saturday 31 January 2026 WIN +16.3
Bayram, Y. (Yigit) (1407) Saturday 31 January 2026 WIN +20.4
Kaptein, V. (Valentijn) (1413) Saturday 31 January 2026 WIN +20.7
Klauber, D. (Daniel) (1418) Saturday 31 January 2026 LOSS -19.0
Manchikanti, A. (Arya) (1678) Saturday 8 November 2025 DRAW +14.0
Leferink, M. (Maxim) (1665) Saturday 8 November 2025 LOSS -6.5
Mohan, M. (Manaswini) (1426) Saturday 8 November 2025 LOSS -17.6
Chrispijn, C. (Christopher) (1494) Saturday 8 November 2025 LOSS -14.0
Dellen van, T. (Thijmen) (1559) Saturday 8 November 2025 LOSS -10.8
Kerckhaert, P. (Pijke) (1609) Saturday 8 November 2025 WIN +31.4
Medendorp, D. (Daniël) (1456) Saturday 13 September 2025 WIN +22.1
Boomhouwer, R. (Rens) (1461) Saturday 13 September 2025 LOSS -17.6
Roorda, M. (Mattias) (1474) Saturday 13 September 2025 LOSS -16.9
Douma, J. (Jente) (1514) Saturday 13 September 2025 LOSS -14.7
Mulder, S. (Sven) (1523) Saturday 13 September 2025 LOSS -14.3
Bezemer, D. (Dennis) (1529) Saturday 13 September 2025 LOSS -14.0
Groen, J.N. (Jesse) (821) Saturday 24 May 2025 WIN +2.2