KNSB FIDE
SK

Sander Koster

Rated since January 2023

1727 Classic
1715 Rapid
1715 Blitz

Team Competition

Current team
Rijssen 1
Klasse 6B · 2024-2025 · 1 game
Past teams
S.C.Rijssen 1
2E · 2018-2019
4 games

RIVALRY

Nemesis
Waanders, M.H. (Marinus)
Games: 5 · Win rate: 100%
Easy Target
Gerritsen Mulkes, S. (Sven)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
BRINKS, G.J. (JURIAN) 1672
9671 Rijssen interne Competitie 2024-2025 Deel 1 Ronde 1-8 · Thursday 10 October 2024
NIJSTAD, L. (LEROY) 1620
10636 Rijssen interne Competitie 2024-2025 Deel 3 Ronde 16-20 · Thursday 30 January 2025
BENNEMA GEERLINGS, M. (MENNO) 1557
13875 Rijssen interne Competitie 2025-2026 Deel 5 Ronde 25-32 · Thursday 21 May 2026
MAAT VAN DE, G.W. (WIM) 1551
13875 Rijssen interne Competitie 2025-2026 Deel 5 Ronde 25-32 · Thursday 26 March 2026
SMIT, J.G. (GERBEN) 1468
10636 Rijssen interne Competitie 2024-2025 Deel 3 Ronde 16-20 · Thursday 16 January 2025
Worst losses
GERRITSEN MULKES, J. (JASPER) 1440
10636 Rijssen interne Competitie 2024-2025 Deel 3 Ronde 16-20 · Thursday 23 January 2025
LINGEMAN, R. (REIN) 1615
10636 Rijssen interne Competitie 2024-2025 Deel 3 Ronde 16-20 · Thursday 13 February 2025
LANGE DE, H.J.G. (HANS) 1706
6148 S.C.Rijssen interne competitie 26-08-2021 t/m 19-05-2022 (030025) · Thursday 16 September 2021
KRUIMER, H.J. (ARJEN) 1769
9671 Rijssen interne Competitie 2024-2025 Deel 1 Ronde 1-8 · Thursday 3 October 2024
BRINKMAN, J.W. (JAN) 1802
6148 S.C.Rijssen interne competitie 26-08-2021 t/m 19-05-2022 (030025) · Thursday 26 August 2021
No FIDE-rated tournaments found.
Rijssen interne Competitie 2025-2026 Deel 5 Ronde 25-32 Thursday 4 September 2025 +4–1=0 +11.5
Rijssen interne Competitie 2025-2026 Deel 4 Ronde 18-24 Thursday 4 September 2025 +2–1=0 -13.3
KNSB competitie 2024-2025 Klasse 6 ronde 1 Saturday 21 September 2024 +0–0=1 -2.0
Rijssen interne Competitie 2024-2025 Deel 5 Ronde 30-32 Thursday 5 September 2024 +2–0=0 +5.2
Rijssen interne Competitie 2024-2025 Deel 4 Ronde 21-29 Thursday 5 September 2024 +2–0=0 +6.7
Rijssen interne Competitie 2024-2025 Deel 3 Ronde 16-20 Thursday 5 September 2024 +2–2=1 -29.7
Rijssen interne Competitie 2024-2025 Deel 2 Ronde 9-15 Thursday 5 September 2024 +1–0=0 +7.6
Rijssen interne Competitie 2024-2025 Deel 1 Ronde 1-8 Thursday 5 September 2024 +1–1=0 -1.4
S.C.Rijssen interne competitie 26-08-2021 t/m 19-05-2022 (030025) Thursday 26 August 2021 +2–2=0 -13.0

Rating History

Loading rating history...

Peak Ratings

Classic 1746 Jan. 1, 2025
Rapid 1728 March 1, 2026
Blitz 1728 March 1, 2026

Games

Wins 16
Losses 7
Draws 2
Win Rate 64%

Performance by Color

Color Wins Draws Losses Win Rate
White 8 0 3 73%
Black 8 2 4 57%

Recent Matches

Gerritsen Mulkes, S. (Sven) (1348) Thursday 28 May 2026 WIN +2.5
Bennema Geerlings, M. (Menno) (1557) Thursday 21 May 2026 WIN +7.3
Waanders, M.H. (Marinus) (1200) Thursday 23 April 2026 WIN +0.9
Harmsel ter, A. (Albert) (1925) Thursday 9 April 2026 LOSS -5.8
Maat van de, G.W. (Wim) (1551) Thursday 26 March 2026 WIN +6.7
Gerritsen Mulkes, S. (Sven) (1327) Thursday 19 March 2026 WIN +2.0
Lingeman, R. (Rein) (1623) Thursday 12 March 2026 LOSS -16.1
Waanders, M.H. (Marinus) (1200) Thursday 19 February 2026 WIN +0.8
Smit, J.G. (Gerben) (1455) Thursday 22 May 2025 WIN +4.4
Waanders, M.H. (Marinus) (1203) Thursday 8 May 2025 WIN +0.9
Gerritsen Mulkes, S. (Sven) (1307) Thursday 10 April 2025 WIN +1.9
Maat van de, G.W. (Wim) (1496) Thursday 27 February 2025 WIN +4.8
Lingeman, R. (Rein) (1615) Thursday 13 February 2025 LOSS -16.9
Leppink, G.J. (Gerrit Jan) (1637) Thursday 6 February 2025 DRAW -3.7
Nijstad, L. (Leroy) (1620) Thursday 30 January 2025 WIN +8.2
Gerritsen Mulkes, J. (Jasper) (1440) Thursday 23 January 2025 LOSS -21.5
Smit, J.G. (Gerben) (1468) Thursday 16 January 2025 WIN +4.1
Nijstad, L. (Leroy) (1590) Thursday 7 November 2024 WIN +7.6
Rossel, A. (Aron) (1684) Saturday 12 October 2024 DRAW -2.0
Brinks, G.J. (Jurian) (1672) Thursday 10 October 2024 WIN +10.1