KNSB FIDE
CW

Cor van der Werff

Rated since January 2023

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
JONG DE, S.P. (SEBASTIAAN) 1747
11330 NOSBO competitie 2024-2025 Mei 2025 · Friday 23 May 2025
TIMMEREN VAN, M.S. (MARTIN) 1726
12552 NOSBO-competitie 2025-2026 ronde 3 Groep A · Thursday 4 December 2025
ZWANEPOL, J. (JOHAN) 1694
12595 KNSB competitie 2025-2026 Klasse 6 ronde 4 · Saturday 13 December 2025
UYLEMAN, A. (ARTHUR) 1628
13220 NOSBO Beker 2025-2026 Kwartfinale Groep A · Friday 27 February 2026
SPRIENSMA, M. (MARTINUS) 1601
11527 Nazomervierkampentoernooi Assen 2025 Groep A · Friday 29 August 2025
Worst losses
BURGER, G.J. (GERARD) 1372
11995 KNSB competitie 2025-2026 Klasse 6 ronde 1 · Saturday 4 October 2025
BIANCHI, B. (BOB) 1562
12882 NOSBO-competitie 2025-2026 ronde 4 Groep A · Tuesday 20 January 2026
FLEDDERUS, M. (MARCEL) 1594
13291 NOSBO-competitie 2025-2026 ronde 5 (de uitgestelde wedstrijd) Groep A · Friday 13 March 2026
AKKERMAN, J. (JAN) 1614
12199 S.C. Assen interne competitie 03-10-2025 t/m 24-10-2025 (020001) · Friday 17 October 2025
HETTINGA, J. (JAAP) 1649
11527 Nazomervierkampentoernooi Assen 2025 Groep A · Saturday 30 August 2025
Nazomervierkampentoernooi Assen 2025 Groep A Friday 29 August 2025 +1–1=1 -6.0
NOSBO-competitie 2025-2026 ronde 7 Groep A Monday 13 April 2026 +1–0=0 +9.2
NOSBO-competitie 2025-2026 ronde 6 (minus één uitgestelde wedstrijd)… Monday 16 March 2026 +0–1=0 -11.3
NOSBO-competitie 2025-2026 ronde 5 (de uitgestelde wedstrijd) Groep A Friday 13 March 2026 +0–1=0 -13.7
NOSBO-competitie 2025-2026 ronde 4 Groep A Monday 19 January 2026 +0–1=0 -15.3
NOSBO Beker 2025-2026 Kwartfinale Groep A Thursday 15 January 2026 +1–0=0 +12.5
NOSBO-competitie 2025-2026 ronde 3 Groep A Friday 28 November 2025 +1–0=0 +15.7
NOSBO-competitie 2025-2026 ronde 2 Groep A Monday 10 November 2025 +0–1=0 -4.3
NOSBO-competitie 2025-2026 ronde 1 Klasse 2B Monday 13 October 2025 +0–0=1 -0.7
KNSB competitie 2025-2026 Klasse 6 ronde 5 Saturday 20 September 2025 +1–0=0 +6.2
KNSB competitie 2025-2026 Klasse 6 ronde 4 Saturday 20 September 2025 +1–0=0 +15.0
KNSB competitie 2025-2026 Klasse 6 ronde 1 Saturday 20 September 2025 +0–1=0 -21.4
S.C. Assen interne competitie 10-04-2026 t/m 24-04-2026 (020001) Friday 5 September 2025 +0–1=0 -5.5
S.C. Assen interne competitie 27-02-2026 t/m 27-03-2026 (020001) Friday 5 September 2025 +0–1=0 -9.1
S.C. Assen interne competitie 05-12-2025 t/m 19-12-2025 (020001) Friday 5 September 2025 +0–1=0 -9.8
S.C. Assen interne competitie 31-10-2025 t/m 28-11-2025 (020001) Friday 5 September 2025 +0–1=0 -6.1
S.C. Assen interne competitie 03-10-2025 t/m 24-10-2025 (020001) Friday 5 September 2025 +0–2=0 -19.6
S.C. Assen interne competitie 05-09-2025 t/m 26-09-2025 (020001) Friday 5 September 2025 +0–2=0 -18.4
NOSBO competitie 2024-2025 Mei 2025 Wednesday 1 January 2025 +1–1=0 +14.8
S.C. Assen interne competitie 02-05-2025 t/m 23-05-2025 (020001) Friday 6 September 2024 +1–1=0 +2.3

Rating History

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Peak Ratings

Classic 1718 March 1, 2024
Rapid 1628 March 1, 2026
Blitz 1628 March 1, 2026

Games

Wins 8
Losses 16
Draws 2
Win Rate 31%

Performance by Color

Color Wins Draws Losses Win Rate
White 6 1 9 38%
Black 2 1 7 20%

Recent Matches

Bosveld, M. (Mattias) (1832) Friday 24 April 2026 LOSS -5.5
Bottema, M. (Mila) (1518) Friday 17 April 2026 WIN +9.2
Oosten van, K. (Kevin) (1434) Saturday 28 March 2026 WIN +6.2
Leemrijse, M. (Marius) (1727) Friday 20 March 2026 LOSS -9.1
Boonstra, T. (Toby) (1664) Tuesday 17 March 2026 LOSS -11.3
Fledderus, M. (Marcel) (1594) Friday 13 March 2026 LOSS -13.7
Uyleman, A. (Arthur) (1628) Friday 27 February 2026 WIN +12.5
Bianchi, B. (Bob) (1562) Tuesday 20 January 2026 LOSS -15.3
Jonkheer, M. (Marco) (1699) Friday 19 December 2025 LOSS -9.8
Zwanepol, J. (Johan) (1694) Saturday 13 December 2025 WIN +15.0
Timmeren van, M.S. (Martin) (1726) Thursday 4 December 2025 WIN +15.7
Voorintholt, G.K. (Gerard) (1829) Friday 21 November 2025 LOSS -6.1
Jansen, E. (Eric) (1902) Friday 14 November 2025 LOSS -4.3
Akkerman, J. (Jan) (1614) Friday 17 October 2025 LOSS -14.6
Leur de, W. (Wouter) (1653) Thursday 16 October 2025 DRAW -0.7
Leemrijse, M. (Marius) (1744) Friday 10 October 2025 LOSS -5.0
Burger, G.J. (Gerard) (1372) Saturday 4 October 2025 LOSS -21.4
Voorintholt, G.K. (Gerard) (1818) Friday 19 September 2025 LOSS -8.4
Boer, J. (Jan) (1771) Friday 5 September 2025 LOSS -10.0
Hettinga, J. (Jaap) (1649) Saturday 30 August 2025 LOSS -14.2