KNSB FIDE
JD

Jessica Derksen-Harmsen

Rated since January 2023

1997 Classic
2016 Rapid
1985 Blitz

RIVALRY

Nemesis
Dijk, W.R. (Rogier)
Games: 3 · Win rate: 67%

The good & the bad

Best wins
HNG, MEI-EN EMMANUELLE (WFM) 2137
29th European Club Cup for Women · Monday 20 October 2025
DONK VAN, O.J. (OLGER) 2075
9948 KNSB competitie 2024-2025 Klasse 2 ronde 4 · Saturday 23 November 2024
LOOIJMANS, K.N.H. (KAREL) 2059
7917 RSB Competitie 2023-2024 8-tallen november · Friday 27 October 2023
DIJK, W.R. (ROGIER) 2049
10239 NK Snelschaken 2025 Groep A · Saturday 13 September 2025
BEMMEL VAN, K. (KOERT) 2034
8570 KNSB competitie 2023-2024 Klasse 2 ronde 7 · Saturday 2 March 2024
Worst losses
MOERI, C. (CASPER) 1750
12530 NK Snelschaken 2026 Groep A · Saturday 12 September 2026
FLUEGEL, M. (MICHAEL) 1872
10239 NK Snelschaken 2025 Groep A · Saturday 13 September 2025
LEEK VAN DER, W.M. (MARK) 1880
10239 NK Snelschaken 2025 Groep A · Saturday 13 September 2025
NGANGBAM, C. (CHINGTHANG) 1890
10239 NK Snelschaken 2025 Groep A · Saturday 13 September 2025
KARAIVANOVA, PETYA (WFM) 1909
24th European Women's Chess Championship 2024 · Saturday 27 April 2024
NK Snelschaken 2026 Groep A Saturday 12 September 2026 +9–10=7 -28.9
29th European Club Cup for Women Sunday 19 October 2025 +1–4=0 +10.3
NK Snelschaken 2025 Groep A Saturday 13 September 2025 +13–10=2 -7.3
KNSB competitie 2026-2027 Klasse 2 ronde 1 Saturday 19 September 2026 +0–1=0 -9.6
KNSB competitie 2025-2026 Klasse 2 ronde 9 Saturday 20 September 2025 +0–1=0 -8.9
KNSB competitie 2025-2026 Klasse 2 ronde 6 Saturday 20 September 2025 +0–0=1 +2.8
KNSB competitie 2025-2026 Klasse 2 ronde 8 Saturday 20 September 2025 +0–1=0 -13.2
KNSB competitie 2025-2026 Klasse 2 ronde 5 Saturday 20 September 2025 +1–0=0 +10.2
KNSB competitie 2025-2026 Klasse 2 Ronde 4 Saturday 20 September 2025 +0–1=0 -9.3
KNSB competitie 2025-2026 Klasse 2 ronde 3 Saturday 20 September 2025 +0–0=1 -0.9
KNSB competitie 2025-2026 Klasse 2 ronde 2 Saturday 20 September 2025 +1–0=0 +11.5
KNSB competitie 2025-2026 Klasse 2 ronde 1 Saturday 20 September 2025 +0–1=0 -10.3
NK schaken 2025 Dames Saturday 5 July 2025 +1–1=2 +14.8
KNSB competitie 2024-2025 Klasse 2 ronde 9 Saturday 21 September 2024 +0–0=1 +1.6
KNSB competitie 2024-2025 Klasse 2 ronde 8 Saturday 21 September 2024 +0–0=1 +6.6
KNSB competitie 2024-2025 Klasse 2 ronde 7 Saturday 21 September 2024 +0–1=0 -8.6
KNSB competitie 2024-2025 Klasse 2 ronde 5 Saturday 21 September 2024 +0–1=0 -8.1
KNSB competitie 2024-2025 Klasse 2 ronde 4 Saturday 21 September 2024 +1–0=0 +15.3
KNSB competitie 2024-2025 Klasse 2 ronde 3 Saturday 21 September 2024 +1–0=0 +10.7
KNSB competitie 2024-2025 Klasse 2 ronde 1 Saturday 21 September 2024 +0–0=1 -1.8
RSB Competitie 2024-2025 Beker ronde 1 Sunday 1 September 2024 +0–1=0 -12.6
24th European Women's Chess Championship 2024 Friday 19 April 2024 +2–4=4 -46.3
KNSB competitie 2023-2024 Klasse 2 ronde 8 Saturday 16 September 2023 +1–0=0 +3.9
KNSB competitie 2023-2024 Klasse 2 ronde 7 Saturday 16 September 2023 +1–0=0 +12.9
KNSB competitie 2023-2024 Klasse 2 ronde 6 Saturday 16 September 2023 +0–1=0 -4.5
KNSB competitie 2023-2024 Klasse 2 ronde 5 Saturday 16 September 2023 +0–0=1 -1.5
KNSB competitie 2023-2024 Klasse 2 ronde 4 Saturday 16 September 2023 +0–1=0 -13.7
KNSB competitie 2023-2024 Klasse 2 ronde 2 Saturday 16 September 2023 +0–1=0 -13.7
KNSB competitie 2023-2024 Klasse 2 ronde 1 Saturday 16 September 2023 +0–0=1 -3.5
RSB Competitie 2023-2024 8-tallen mei Friday 1 September 2023 +0–1=0 -2.5
RSB Competitie 2023-2024 8-tallen april Friday 1 September 2023 +0–1=0 -4.7
RSB Competitie 2023-2024 8-tallen maart Friday 1 September 2023 +0–0=1 -4.7
RSB Competitie 2023-2024 8-tallen februari Friday 1 September 2023 +0–1=0 -11.2
RSB Competitie 2023-2024 8-tallen december Friday 1 September 2023 +0–0=1 +2.6
RSB Competitie 2023-2024 8-tallen november Friday 1 September 2023 +1–0=0 +13.5
KNSB competitie 2022-2023 Klasse 2 ronde 9 Saturday 17 September 2022 +0–0=1 +0.3
KNSB competitie 2022-2023 Klasse 2 ronde 8 Saturday 17 September 2022 +1–0=0 +11.6
KNSB competitie 2022-2023 Klasse 2 ronde 7 Saturday 17 September 2022 +0–1=0 -9.3
KNSB competitie 2022-2023 Klasse 2 ronde 6 Saturday 17 September 2022 +0–0=1 -6.1
KNSB competitie 2022-2023 Klasse 2 ronde 5 Saturday 17 September 2022 +0–0=1 -4.5
RSB Competitie 2022-2023 8-tallen juli Thursday 1 September 2022 +0–0=1 -7.7
RSB Competitie 2022-2023 8-tallen mei Thursday 1 September 2022 +1–0=0 +6.1
RSB Competitie 2022-2023 8-tallen april Thursday 1 September 2022 +0–0=1 +1.3
RSB Competitie 2022-2023 8-tallen maart Thursday 1 September 2022 +0–0=1 +0.3
RSB Competitie 2022-2023 8-tallen januari Thursday 1 September 2022 +1–0=0 +12.0

Team Competition

Current team
CSV 1
Klasse 2B · 2025-2026 · 8 games
Past teams
CSV 1
Klasse 2C · 2024-2025
CSV 1
Klasse 2B · 2023-2024
CSV 1
Hoofdklasse · 2023-2024
CSV 1
Hoofdklasse · 2022-2023
CSV 1
Klasse 2C · 2022-2023
CSV 1
Klasse 1A · 2021-2022
CSV 1
Klasse 3F · 2021-2022

Rating History

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Peak Ratings

Classic 2077 May 1, 2023
Rapid 2026 March 1, 2026
Blitz 2014 Oct. 1, 2025

Games

Wins 36
Losses 44
Draws 30
Win Rate 33%

Performance by Color

Color Wins Draws Losses Win Rate
White 18 12 22 35%
Black 18 18 22 31%

Recent Matches

Hallibert, E.J.M.C. (Emilien) (2092) Saturday 19 September 2026 LOSS -9.6
Moeri, C. (Casper) (1750) Saturday 12 September 2026 LOSS -10.3
Vogels, M. (Mathijs) (2026) Saturday 12 September 2026 LOSS -6.0
Heijer den, C.A. (Rolinde) (2143) Saturday 12 September 2026 LOSS -8.2
Klein, R.J.H. (Ron) (1928) Saturday 12 September 2026 LOSS -15.5
Elferink, L.A. (Leon) (1988) Saturday 12 September 2026 DRAW -0.9
Kate ten, G. (Gustav) (2133) Saturday 12 September 2026 DRAW +4.0
Beijen, M. (Mark) (1874) Saturday 12 September 2026 WIN +7.8
Aziz, D.H. (Daniel) (1995) Saturday 12 September 2026 LOSS -13.2
Broek, B. (Barry) (1785) Saturday 12 September 2026 WIN +5.3
Zouridis, C.S. (Christian) (2015) Saturday 12 September 2026 LOSS -12.5
Havenaar, J. (Jan) (1945) Saturday 12 September 2026 WIN +10.1
Suthan, A. (Aadvik) (1877) Saturday 12 September 2026 WIN +7.9
Manoch, M. (Maurice) (2100) Saturday 12 September 2026 LOSS -9.5
Wit de, C. (Cor) (1898) Saturday 12 September 2026 WIN +8.6
Westenberg, H. (Han) (2064) Saturday 12 September 2026 DRAW +1.7
Blok, L. (Lukas) (2047) Saturday 12 September 2026 DRAW +1.2
Teianu, S. (Sabin) (2018) Saturday 12 September 2026 LOSS -6.2
Westenberg, H. (Han) (2064) Saturday 12 September 2026 DRAW +1.7
Jong, C. (Casijn) (1920) Saturday 12 September 2026 LOSS -15.7