KNSB FIDE
CW

Co Wiersma

Rated since January 2023

1883 Classic
1883 Rapid
1883 Blitz

Team Competition

Current team
Wageningen 3
Klasse 5E · 2025-2026 · 6 games
Past teams
Wageningen 3
Klasse 5E · 2024-2025
6 games
Wageningen 2
Klasse 3B · 2023-2024
1 game
Wageningen 3
Klasse 4B · 2023-2024
8 games
Wageningen 3
Klasse 5C · 2022-2023
6 games
Wageningen 1
Klasse 1A · 2021-2022
2 games
Wageningen 1
HKC · 2021-2022
2 games
Wageningen 3
Klasse 4C · 2021-2022
7 games
S.V. Wageningen 1
HKC · 2019-2020
1 game
S.V. Wageningen 3
2G · 2019-2020
1 game

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
GARDEREN VAN, A. (TON) 1859
13315 KNSB competitie 2025-2026 Klasse 5 ronde 5 · Saturday 28 March 2026
SHIROKOV, N. (NESTOR) 1846
13248 KNSB competitie 2025-2026 Klasse 5 ronde 7 · Saturday 7 March 2026
STALLINGA, H. (HEIN) 1792
11994 KNSB competitie 2025-2026 Klasse 5 ronde 1 · Saturday 4 October 2025
STEGMAN, K.O. (KOSSE) 1729
12265 KNSB competitie 2025-2026 Klasse 5 ronde 2 · Saturday 1 November 2025
No FIDE-rated tournaments found.
KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +1–0=0 +12.5
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +1–0=0 +12.1
KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +0–0=1 -6.6
KNSB competitie 2025-2026 Klasse 5 Ronde 3 Saturday 20 September 2025 +0–0=1 -2.9
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +1–0=0 +8.1
KNSB competitie 2025-2026 Klasse 5 ronde 1 Saturday 20 September 2025 +1–0=0 +10.5

Rating History

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Peak Ratings

Classic 1883 April 1, 2026
Rapid 1883 May 1, 2026
Blitz 1883 May 1, 2026

Games

Wins 4
Losses 0
Draws 2
Win Rate 67%

Performance by Color

Color Wins Draws Losses Win Rate
White 3 1 0 75%
Black 1 1 0 50%

Recent Matches

Garderen van, A. (Ton) (1859) Saturday 28 March 2026 WIN +12.5
Shirokov, N. (Nestor) (1846) Saturday 7 March 2026 WIN +12.1
Laar van de, B.P. (Bruun) (1660) Saturday 13 December 2025 DRAW -6.6
Dielhoff, H.J. (Johan) (1776) Saturday 22 November 2025 DRAW -2.9
Stegman, K.O. (Kosse) (1729) Saturday 1 November 2025 WIN +8.1
Stallinga, H. (Hein) (1792) Saturday 4 October 2025 WIN +10.5