IZ

Ischa Zwikker

Rated since January 2023

1444 Classic
1508 Rapid
1495 Blitz

RIVALRY

Nemesis
Sluiter, F. (Frank)
Games: 10 · Win rate: 50%
Kryptonite
Riel van, J.J.C. (Jan)
Games: 9 · Win rate: 0%
Easy Target
Said, A. (Abdi)
Games: 8 · Win rate: 88%

The good & the bad

Best wins
KOOIMAN, E.J. (EGBERT) 1730
11500 S.V. Castricum interne competitie 06-06-2025 t/m 06-06-2025 (090009) · Friday 6 June 2025
MAAS VAN DER, J. (JAN) 1666
11500 S.V. Castricum interne competitie 06-06-2025 t/m 06-06-2025 (090009) · Friday 6 June 2025
HOEKSTRA, S. (SJOERD) 1606
11083 S.V. Castricum interne competitie 28-03-2025 t/m 25-04-2025 (090009) · Friday 11 April 2025
KOPPENAAL, J. (JAPPE) 1575
11083 S.V. Castricum interne competitie 28-03-2025 t/m 25-04-2025 (090009) · Friday 4 April 2025
VERKERK, F.W. (FRANK) 1556
8744 NHSB-competitie 2023-2024 Viertallen E t/m 26-03-2024 · Friday 22 March 2024
Worst losses
SCHOORL, P. (PUK) 856
8046 S.V. Castricum interne competitie 24-11-2023 t/m 22-12-2023 (090009) · Friday 8 December 2023
LUTE, N. (NICO) 1026
7551 S.V. Castricum interne competitie 01-09-2023 t/m 22-09-2023 (090009) · Friday 15 September 2023
REEK, R. (REIN) 1043
6739 S.V. Castricum interne competitie 24-02-2023 t/m 17-03-2023 (090009) · Friday 3 March 2023
LEEST VAN DER, A. (ALEX) 1044
8046 S.V. Castricum interne competitie 24-11-2023 t/m 22-12-2023 (090009) · Friday 22 December 2023
SLUITER, F. (FRANK) 1130
6534 S.V. Castricum interne competitie 07-01-2023 t/m 17-02-2023 (090009) · Friday 20 January 2023
No FIDE-rated tournaments found.
S.V. Castricum interne competitie 01-05-2026 t/m 01-05-2026 (090009) Friday 1 May 2026 +2–3=0 -33.6
S.V. Castricum interne competitie 10-04-2026 t/m 24-04-2026 (090009) Friday 10 April 2026 +1–0=0 +5.4
S.V. Castricum interne competitie 27-02-2026 t/m 27-03-2026 (090009) Friday 27 February 2026 +0–3=0 -27.5
S.V. Castricum interne competitie 30-01-2026 t/m 20-02-2026 (090009) Friday 9 January 2026 +1–3=0 -2.1
S.V. Castricum interne competitie 09-01-2026 t/m 23-01-2026 (090009) Friday 9 January 2026 +1–2=0 -19.0
S.V. Castricum interne competitie 28-11-2025 t/m 19-12-2025 (090009) Friday 28 November 2025 +1–0=0 +9.7
S.V. Castricum interne competitie 31-10-2025 t/m 22-11-2025 (090009) Friday 31 October 2025 +1–1=0 -3.1
S.V. Castricum interne competitie 03-10-2025 t/m 24-10-2025 (090009) Friday 3 October 2025 +1–3=0 -12.7
S.V. Castricum interne competitie 05-09-2025 t/m 26-09-2025 (090009) Friday 5 September 2025 +0–0=2 +9.4
NHSB-competitie 2025-2026 Viertallen F t/m 05-04-2026 Monday 1 September 2025 +1–0=0 +9.7
NHSB-competitie 2025-2026 Viertallen F t/m 08-03-2026 Monday 1 September 2025 +1–0=0 +9.4
NHSB-competitie 2025-2026 Viertallen F t/m 15-02-2026 Monday 1 September 2025 +0–1=0 -12.5
NHSB-competitie 2025-2026 Viertallen F t/m 16-11-2025 Monday 1 September 2025 +0–1=0 -9.0
S.V. Castricum interne competitie 30-05-2025 t/m 27-06-2025 (090009) Friday 30 May 2025 +0–2=1 -19.7
S.V. Castricum interne competitie 06-06-2025 t/m 06-06-2025 (090009) Friday 30 May 2025 +2–5=0 -12.3
S.V. Castricum interne competitie 09-05-2025 t/m 24-05-2025 (090009) Friday 2 May 2025 +0–2=0 -21.5
S.V. Castricum interne competitie 02-05-2025 t/m 02-05-2025 (090009) Friday 2 May 2025 +2–2=1 +13.1
S.V. Castricum interne competitie 28-03-2025 t/m 25-04-2025 (090009) Friday 28 March 2025 +2–0=0 +34.1
S.V. Castricum interne competitie 28-02-2025 t/m 21-03-2025 (090009) Friday 28 February 2025 +2–1=1 +17.1
S.V. Castricum interne competitie 31-01-2025 t/m 21-02-2025 (090009) Friday 31 January 2025 +2–1=1 +12.0
S.V. Castricum interne competitie 20-12-2024 t/m 24-01-2025 (090009) Friday 20 December 2024 +2–1=0 +14.7
S.V. Castricum interne competitie 29-11-2024 t/m 13-12-2024 (090009) Friday 29 November 2024 +2–1=0 +7.6
S.V. Castricum interne competitie 01-11-2024 t/m 22-11-2024 (090009) Friday 1 November 2024 +1–1=0 +0.5
S.V. Castricum interne competitie 27-09-2024 t/m 25-10-2024 (090009) Friday 27 September 2024 +0–3=0 -31.6
S.V. Castricum interne competitie 06-09-2024 t/m 20-09-2024 (090009) Friday 6 September 2024 +1–1=0 +12.6
NHSB-competitie 2024-2025 Klasse 3C t/m 20-04-2025 Sunday 1 September 2024 +0–1=0 -9.6
NHSB-competitie 2024-2025 Klasse 3C t/m 29-03-2025 Sunday 1 September 2024 +0–1=0 -7.1
NHSB-competitie 2024-2025 Klasse 3C t/m 12-01-2025 Sunday 1 September 2024 +0–0=1 +1.1
NHSB-competitie 2024-2025 Klasse 3C t/m 28-11-2024 Sunday 1 September 2024 +0–2=0 -10.7
NHSB-competitie 2024-2025 Klasse 3C t/m 26-10-2024 Sunday 1 September 2024 +0–1=0 -15.0
S.V. Castricum interne competitie 31-05-2024 t/m 21-06-2024 (090009) Friday 31 May 2024 +0–1=0 -5.7
S.V. Castricum interne competitie 05-04-2024 t/m 24-05-2024 (090009) Friday 5 April 2024 +2–1=2 +39.1
S.V. Castricum interne competitie 01-03-2024 t/m 22-03-2024 (090009) Friday 1 March 2024 +0–1=0
S.V. Castricum interne competitie 27-01-2024 t/m 23-02-2024 (090009) Friday 26 January 2024 +3–1=0 +53.9
S.V. Castricum interne competitie 05-01-2024 t/m 19-01-2024 (090009) Friday 5 January 2024 +1–1=0 +26.3
S.V. Castricum interne competitie 23-12-2023 t/m 22-03-2024 (090009) Saturday 23 December 2023 +1–0=0
S.V. Castricum interne competitie 24-11-2023 t/m 22-12-2023 (090009) Friday 24 November 2023 +0–4=0 -58.6
S.V. Castricum interne competitie 03-11-2023 t/m 17-11-2023 (090009) Friday 27 October 2023 +0–2=0 -8.1
S.V. Castricum interne competitie 27-10-2023 t/m 27-10-2023 (090009) Friday 27 October 2023 +0–1=0 -2.1
S.V. Castricum interne competitie 29-09-2023 t/m 20-10-2023 (090009) Friday 29 September 2023 +0–2=0 -9.1
NHSB-competitie 2023-2024 Viertallen E t/m 26-03-2024 Friday 1 September 2023 +1–1=0 +10.6
NHSB-competitie 2023-2024 Viertallen E t/m 23-02-2024 Friday 1 September 2023 +0–1=0 -8.7
NHSB-competitie 2023-2024 Viertallen E t/m 26-12-2023 Friday 1 September 2023 +0–0=1
NHSB-competitie 2023-2024 Viertallen E t/m november Friday 1 September 2023 +1–0=1 +24.1
S.V. Castricum interne competitie 01-09-2023 t/m 22-09-2023 (090009) Friday 1 September 2023 +2–2=0 +25.9
S.V. Castricum interne competitie 26-05-2023 t/m 23-06-2023 (090009) Friday 26 May 2023 +1–1=1 -7.2
S.V. Castricum interne competitie 28-04-2023 t/m 19-05-2023 (090009) Friday 28 April 2023 +1–2=0 +42.5
S.V. Castricum interne competitie 31-03-2023 t/m 21-04-2023 (090009) Friday 31 March 2023 +1–1=0 -2.1
S.V. Castricum interne competitie 24-03-2023 t/m 30-06-2023 (090009) Friday 24 March 2023 +0–1=0
S.V. Castricum interne competitie 24-02-2023 t/m 17-03-2023 (090009) Friday 24 February 2023 +2–2=0 +80.2
S.V. Castricum interne competitie 07-01-2023 t/m 17-02-2023 (090009) Friday 6 January 2023 +2–3=0 +34.6
S.V. Castricum interne competitie 25-11-2022 t/m 23-12-2022 (090009) Friday 25 November 2022 +1–1=2 +20.0

Rating History

Loading rating history...

Peak Ratings

Classic 1529 May 1, 2025
Rapid 1542 June 1, 2025
Blitz 1495 July 1, 2025

Games

Wins 45
Losses 71
Draws 14
Win Rate 35%

Performance by Color

Color Wins Draws Losses Win Rate
White 27 6 29 44%
Black 18 8 42 26%

Recent Matches

Reek, R. (Rein) (1299) Friday 1 May 2026 WIN +4.9
Suanet, G.A. (Ron) (1150) Friday 1 May 2026 LOSS -22.9
Said, A. (Abdi) (943) Friday 1 May 2026 WIN +0.5
Riel van, J.J.C. (Jan) (1585) Friday 1 May 2026 LOSS -11.0
Koppenaal, J. (Jappe) (1605) Friday 1 May 2026 LOSS -5.2
Said, A. (Abdi) (1204) Friday 17 April 2026 WIN +5.4
Albers, J.A. (Jos) (1367) Tuesday 31 March 2026 WIN +9.7
Duinker, J. (Han) (1720) Friday 27 March 2026 LOSS -4.6
Riel van, J.J.C. (Jan) (1581) Friday 20 March 2026 LOSS -8.5
Sluiter, F. (Frank) (1406) Friday 13 March 2026 LOSS -14.4
Ruijter de, P. (Paul) (1357) Friday 6 March 2026 WIN +9.4
Chadwick, J.C. (John) (1594) Friday 20 February 2026 LOSS -8.1
Koppenaal, J. (Jappe) (1570) Friday 13 February 2026 LOSS -4.4
Noort van der, W.D. (Wim) (1463) Monday 9 February 2026 LOSS -12.5
Schagen, J.I. (Hans) (1732) Saturday 7 February 2026 LOSS -4.3
Linden van der, R.W.H. (René) (1544) Friday 30 January 2026 WIN +14.7
Said, A. (Abdi) (1200) Friday 23 January 2026 WIN +4.1
Beukers, D.W. (Daan) (1425) Friday 16 January 2026 LOSS -14.4
Dijker, P. (Pieter) (1595) Friday 9 January 2026 LOSS -8.6
Sluiter, F. (Frank) (1403) Friday 19 December 2025 WIN +9.7