KNSB FIDE
KK

Ko Kooman

Rated since January 2023

1626 Classic
1640 Rapid
1634 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
KNIPPENBERG, B. (BRAM) 1680
11958 Kiste Trui Toernooi Groep A · Saturday 8 November 2025
VAN THIEL, KAREL 1654
11958 Kiste Trui Toernooi Groep A · Saturday 8 November 2025
OLTHOF, I.P.M. (IVO) 1636
14117 52e Open Seniorentoernooi 2026 Groep 7 · Thursday 16 July 2026
LEBBINK, A.J. (ALBERT) 1624
12471 SOS competitie 2025/2026 Lijst 1 jan · Thursday 27 November 2025
DIESEL, C. (CARLO) 1616
13240 Scheldemond Schaaktoernooi Scheldemond Schaaktoernooi · Thursday 6 August 2026
Worst losses
HARTEN VAN, T.M. (THIJS) 1513
12774 SOS competitie 2025/2026 Lijst 1 feb · Friday 16 January 2026
JANSSEN, E. (EIP) 1583
14117 52e Open Seniorentoernooi 2026 Groep 7 · Monday 13 July 2026
GRAASKAMP, G.H. (HARRY) 1649
14117 52e Open Seniorentoernooi 2026 Groep 7 · Tuesday 14 July 2026
TIELEMAN, L. (LUC) 1684
11958 Kiste Trui Toernooi Groep A · Saturday 8 November 2025
NIEUWBOER, R. (ROB) 1708
11958 Kiste Trui Toernooi Groep A · Saturday 8 November 2025
Scheldemond Schaaktoernooi Scheldemond Schaaktoernooi Saturday 1 August 2026 +3–6=0 +6.2
52e Open Seniorentoernooi 2026 Groep 7 Monday 13 July 2026 +1–2=1 -14.0
Kiste Trui Toernooi Groep A Saturday 8 November 2025 +3–4=0 +5.6
SOS competitie 2025/2026 Lijst 1 mei Monday 1 September 2025 +0–1=0
SOS competitie 2025/2026 Lijst 1 apr Monday 1 September 2025 +1–0=0 +3.8
SOS competitie 2025/2026 Lijst 1 mrt Monday 1 September 2025 +1–0=0 +11.7
SOS competitie 2025/2026 Lijst 1 feb Monday 1 September 2025 +0–1=0 -16.2
SOS competitie 2025/2026 Lijst 1 jan Monday 1 September 2025 +1–0=0 +12.7
SOS competitie 2025/2026 Lijst 1 Dec Monday 1 September 2025 +0–0=1 +2.9

Team Competition

Current team
ASV 5
3C · 2025-2026 · 7 games
Past teams
ASV 5
3B · 2024-2025
ASV 6
3D · 2024-2025
ASV 5
3C · 2023-2024
ASV 5
2D · 2022-2023
ASV 5
2D · 2021-2022
Arnhemsche S.V. 6
2G · 2019-2020
Arnhemsche S.V. 5
2F · 2018-2019
Arnhemsche S.V. 6
3D · 2018-2019

Rating History

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Peak Ratings

Classic 1671 Aug. 1, 2024
Rapid 1640 Dec. 1, 2025
Blitz 1634 April 1, 2026

Games

Wins 10
Losses 14
Draws 2
Win Rate 38%

Performance by Color

Color Wins Draws Losses Win Rate
White 5 2 8 33%
Black 5 0 6 45%

Recent Matches

Verdult, E. (Ed) (1545) Saturday 8 August 2026 WIN +9.9
Boecker, Juergen, Dr. (1865) Friday 7 August 2026 LOSS -4.9
Diesel, C. (Carlo) (1616) Thursday 6 August 2026 WIN +12.4
Hasan, M. (Mohamad) Wednesday 5 August 2026 LOSS
ALOWAYYID,FAISAL ABDULAZIZ H (1792) Tuesday 4 August 2026 LOSS -6.8
Roth, Fabian (1533) Monday 3 August 2026 WIN +9.5
Est van, K.B. (Krijn) (1807) Sunday 2 August 2026 LOSS -6.4
Feijen, N. (Niels) (1891) Sunday 2 August 2026 LOSS -4.3
Roth, Jonas (1950) Saturday 1 August 2026 LOSS -3.1
Molendijk, H. (Herman) (1625) Friday 17 July 2026 DRAW -0.3
Olthof, I.P.M. (Ivo) (1636) Thursday 16 July 2026 WIN +12.6
Graaskamp, G.H. (Harry) (1649) Tuesday 14 July 2026 LOSS -12.0
Janssen, E. (Eip) (1583) Monday 13 July 2026 LOSS -14.3
Drent, E.A. (Erik) Friday 24 April 2026 LOSS
Honing, P. (Patrick) (1337) Friday 13 March 2026 WIN +3.8
Bergsma, H. (Henk) (1594) Thursday 5 February 2026 WIN +11.7
Harten van, T.M. (Thijs) (1513) Friday 16 January 2026 LOSS -16.2
Lebbink, A.J. (Albert) (1624) Thursday 27 November 2025 WIN +12.7
Nieuwboer, R. (Rob) (1708) Saturday 8 November 2025 LOSS -10.0
Ven van de, D. (Déjan) (1539) Saturday 8 November 2025 WIN +9.2