KNSB FIDE
JZ

Johan de Zwart

Rated since January 2023

1998 Classic
1998 Rapid
1998 Blitz

RIVALRY

Nemesis
Arendse, A. (Arjo)
Games: 4 · Win rate: 75%
Kryptonite
Lecomte, R. (Robin)
Games: 3 · Win rate: 0%

The good & the bad

Best wins
DAELS, MARC (FM) 2110
Belgian Interclubs Round 2025-2026 Ronde 4 · Sunday 23 November 2025
VANHUYSE, N. (NELE) (WFM) 1996
Belgian Interclubs 2024-2025 Round 4 · Sunday 17 November 2024
GINNEKEN VAN, J. (JEROEN) 1982
12593 KNSB competitie 2025-2026 Klasse 4 ronde 5 · Saturday 13 December 2025
DEWEVER, NIEL 1968
Belgian Interclubs Round 2025-2026 Ronde 10 · Sunday 29 March 2026
VAERD VAN DE, M. (MIGUEL) 1962
Belgian Interclubs 2024-2025 Round 6 · Sunday 26 January 2025
Worst losses
SCHOONEN, M.J. (MATS) 1669
9952 KNSB competitie 2024-2025 Klasse 6 ronde 3 · Saturday 23 November 2024
VOLLMER, LARS CHRISTIAN 1740
10780 27e HZ University of Applied Sciences Schaaktoernooi Groep A · Monday 4 August 2025
KERSTEN, A.P.H.M. (ALOYS) 1747
6425 Beker ZSB 2022-2023 Groep A · Thursday 23 February 2023
CARRIJN, BART 1832
Belgian Interclubs 2024-2025 Round 3 · Sunday 3 November 2024
GRAAF DE, D. (DIG) 1864
6424 ZSB Avondcompetitie 2022-2023 Groep A · Friday 2 December 2022
Belgian Interclubs Round 2025-2026 Ronde 10 Sunday 29 March 2026 +1–0=0 +11.6
Belgian Interclubs Round 2025-2026 Ronde 9 Sunday 15 March 2026 +0–1=0 -14.4
Belgian Interclubs Round 2025-2026 Ronde 8 Sunday 1 March 2026 +0–1=0 -9.0
Belgian Interclubs Round 2025-2026 Ronde 7 Sunday 8 February 2026 +0–3=0 -10.7
Belgian Interclubs Round 2025-2026 Ronde 6 Sunday 25 January 2026 +0–0=1 -0.1
Belgian Interclubs Round 2025-2026 Ronde 5 Sunday 7 December 2025 +1–0=0 +5.8
Belgian Interclubs Round 2025-2026 Ronde 4 Sunday 23 November 2025 +1–0=0 +17.8
Belgian Interclubs Round 2025-2026 Ronde 3 Sunday 16 November 2025 +0–1=0 -7.3
Belgian Interclubs Round 2025-2026 Ronde 2 Sunday 12 October 2025 +1–0=0 +12.4
27e HZ University of Applied Sciences Schaaktoernooi Groep A Saturday 2 August 2025 +3–2=3 +0.6
HZ University of Applied Sciences Schaaktoernooi Groep A Saturday 3 August 2024 +2–2=3 +4.8
HZ University of Applied Sciences Schaaktoernooi Groep A Saturday 5 August 2023 +2–1=1 +4.8
ZSB avondcompetitie 2025-2026 Ronde 9 Wednesday 1 April 2026 +1–0=0 +5.8
ZSB avondcompetitie 2025-2026 Ronde 8 Sunday 1 March 2026 +3–0=0 +22.4
Beker ZSB 2025-2026 Halve finale Monday 1 December 2025 +1–0=0 +7.7
Belgian Interclubs Round 2025-2026 Ronde 1 Sunday 28 September 2025 +0–0=1 -0.4
KNSB competitie 2025-2026 Klasse 4 ronde 9 Saturday 20 September 2025 +0–0=1 -1.9
KNSB competitie 2025-2026 Klasse 4 ronde 6 Saturday 20 September 2025 +0–3=0 -18.0
KNSB competitie 2025-2026 Klasse 4 ronde 8 Saturday 20 September 2025 +0–0=3 +15.4
KNSB competitie 2025-2026 Klasse 3 ronde 7 Saturday 20 September 2025 +0–1=0 -5.7
KNSB competitie 2025-2026 Klasse 4 ronde 5 Saturday 20 September 2025 +1–0=0 +12.9
KNSB competitie 2025-2026 Klasse 4 Ronde 4 Saturday 20 September 2025 +1–0=0 +4.8
KNSB competitie 2025-2026 Klasse 3 ronde 3 Saturday 20 September 2025 +0–0=1 +2.5
KNSB competitie 2025-2026 Klasse 4 ronde 2 Saturday 20 September 2025 +0–0=1 +2.4
ZSB avondcompetitie 2025-2026 Groep A Monday 1 September 2025 +1–0=0 +10.3
Belgian Interclubs 2024-2025 Round 11 Sunday 27 April 2025 +1–0=0 +8.4
ZSB Avondcompetitie 2024-2025 Groep A Monday 7 April 2025 +1–0=0 +3.5
Belgian Interclubs 2024-2025 Round 10 Sunday 30 March 2025 +1–0=0 +3.3
Belgian Interclubs 2024-2025 Round 9 Sunday 16 March 2025 +0–0=1 -4.7
Belgian Interclubs 2024-2025 Round 8 Sunday 16 February 2025 +0–0=1 -6.4
Belgian Interclubs 2024-2025 Round 7 Sunday 2 February 2025 +0–0=1 -3.3
ZSB Bekercompetitie 2024-2025 Groep A Saturday 1 February 2025 +0–1=0 -3.2
Belgian Interclubs 2024-2025 Round 6 Sunday 26 January 2025 +1–0=0 +13.4
Belgian Interclubs 2024-2025 Round 5 Sunday 1 December 2024 +0–0=1 +0.7
Belgian Interclubs 2024-2025 Round 4 Sunday 17 November 2024 +1–0=0 +14.0
Belgian Interclubs 2024-2025 Round 3 Sunday 3 November 2024 +0–1=0 -16.6
ZSB Avondcompetitie 2024-2025 Groep A Friday 1 November 2024 +1–0=0 +8.0
KNSB competitie 2024-2025 Klasse 3 ronde 7 Saturday 21 September 2024 +0–1=0 -9.9
KNSB competitie 2024-2025 Klasse 6 ronde 4 Saturday 21 September 2024 +1–0=0 +7.4
KNSB competitie 2024-2025 Klasse 6 ronde 3 Saturday 21 September 2024 +0–1=0 -21.0
KNSB competitie 2024-2025 Klasse 3 ronde 3 + inhaalwedstrijd ronde 1 Saturday 21 September 2024 +0–1=0 -8.5
KNSB competitie 2024-2025 Klasse 3 ronde 2 Saturday 21 September 2024 +0–1=0 -9.4
KNSB competitie 2024-2025 Klasse 3 ronde 1 Saturday 21 September 2024 +0–1=0 -5.3
ZSB Avondcompetitie 2024-2025 Groep A Monday 16 September 2024 +1–0=0 +5.8
ZSB Bekercompetitie 2023-2024 Bekercompetitie Monday 1 April 2024 +0–0=1 -3.5
ZSB Bekercompetitie 2023-2024 Groep A Monday 1 April 2024 +1–0=0 +8.9
ZSB Avondcompetitie 2023-2024 Groep A Friday 1 March 2024 +1–0=0 +7.5
ZSB Bekercompetitie 2023-2024 Groep A Thursday 1 February 2024 +1–0=0 +11.3
ZSB Bekercompetitie 2023-2024 Groep A Thursday 1 February 2024 +1–0=0
ZSB Avondcompetitie 2023-2024 Groep A Thursday 1 February 2024 +1–0=0 +1.9
ZSB Avondcompetitie 2023-2024 Groep A Friday 1 December 2023 +0–1=0 -13.1
ZSB Avondcompetitie 2023-2024 Groep A Wednesday 1 November 2023 +0–1=0 -3.6
KNSB competitie 2023-2024 Klasse 3 ronde 8 Saturday 16 September 2023 +0–0=1 -0.2
KNSB competitie 2023-2024 Klasse 3 ronde 7 Saturday 16 September 2023 +1–0=0 +13.2
KNSB competitie 2023-2024 Klasse 3 ronde 6 Saturday 16 September 2023 +0–1=0 -7.9
KNSB competitie 2023-2024 Klasse 3 ronde 5 Saturday 16 September 2023 +0–1=0 -6.2
KNSB competitie 2023-2024 Klasse 3 ronde 3 Saturday 16 September 2023 +0–1=0 -6.4
KNSB competitie 2023-2024 Klasse 3 ronde 2 Saturday 16 September 2023 +0–0=1 +2.5
KNSB competitie 2023-2024 Klasse 3 ronde 1 Saturday 16 September 2023 +1–0=0 +4.3
Beker ZSB 2022-2023 Groep A Wednesday 1 February 2023 +0–1=0 -17.4
ZSB Avondcompetitie 2022-2023 Groep A Wednesday 1 February 2023 +1–0=0 +12.5
Beker ZSB 2022-2023 Groep A Sunday 1 January 2023 +1–0=0
ZSB Avondcompetitie 2022-2023 Groep A Sunday 20 November 2022 +0–1=0 -14.4
KNSB competitie 2022-2023 Klasse 3 ronde 5 Saturday 17 September 2022 +0–1=0 -10.0
KNSB competitie 2022-2023 Klasse 3 ronde 4 Saturday 17 September 2022 +0–0=1 +0.4

Rating History

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Peak Ratings

Classic 2001 Feb. 1, 2026
Rapid 1998 May 1, 2026
Blitz 1998 May 1, 2026

Games

Wins 36
Losses 30
Draws 23
Win Rate 40%

Performance by Color

Color Wins Draws Losses Win Rate
White 15 15 13 35%
Black 21 8 17 46%

Recent Matches

Bruijn de, R.T. (Ruben) (1853) Thursday 30 April 2026 WIN +7.7
Feijter de, C.E. (Niels) (1788) Friday 17 April 2026 WIN +5.8
Hemmers, C.A.M. (Carlos) (1942) Saturday 11 April 2026 DRAW -1.9
Dewever, Niel (1968) Sunday 29 March 2026 WIN +11.6
Lecomte, R. (Robin) (2197) Saturday 28 March 2026 LOSS -6.0
Lecomte, R. (Robin) (2197) Saturday 28 March 2026 LOSS -6.0
Lecomte, R. (Robin) (2197) Saturday 28 March 2026 LOSS -6.0
Zotikishvili, Dimitri (1939) Sunday 15 March 2026 LOSS -14.4
Arendse, A. (Arjo) (1844) Friday 13 March 2026 WIN +7.5
Arendse, A. (Arjo) (1844) Friday 13 March 2026 WIN +7.5
Arendse, A. (Arjo) (1844) Friday 13 March 2026 WIN +7.5
Kok, I. (Ivo) (2149) Saturday 7 March 2026 DRAW +5.1
Kok, I. (Ivo) (2149) Saturday 7 March 2026 DRAW +5.1
Kok, I. (Ivo) (2149) Saturday 7 March 2026 DRAW +5.1
Krygelmans, J. (Jo) (2099) Sunday 1 March 2026 LOSS -9.0
FM Dreelinck, J. (Jacob) (2306) Sunday 8 February 2026 LOSS -3.6
FM Dreelinck, J. (Jacob) (2306) Sunday 8 February 2026 LOSS -3.6
FM Dreelinck, J. (Jacob) (2306) Sunday 8 February 2026 LOSS -3.6
Zhang, W. (Tony) (2216) Saturday 7 February 2026 LOSS -5.7
Willockx, R. (Ritsaart) (1974) Sunday 25 January 2026 DRAW -0.1