MK

Marco Koer

Rated since March 2026

1453 Classic
1453 Rapid
1453 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Worst losses
VONK, L. (LARS) 1652
11985 NBSB Avondcompetitie 2025-2026 Ronde 4 · Friday 12 December 2025
GINNEKEN VAN, J. (JOS) 1699
11987 NBSB Avondcompetitie 2025-2026 Ronde 6 · Friday 27 February 2026
LIGTENBERG, B. (BAS) 1732
11983 NBSB Avondcompetitie 2025-2026 Ronde 2 · Friday 24 October 2025
ALIBRAHIM, S. (SALAH) 1742
11986 NBSB Avondcompetitie 2025-2026 Ronde 5 · Monday 2 February 2026
OOMS, C. (KEES) 1904
10447 NBSB Avondcompetitie 2024-2025 Ronde 4 · Friday 17 January 2025
No FIDE-rated tournaments found.
NBSB Avondcompetitie 2025-2026 Ronde 6 Monday 22 September 2025 +0–1=0 -20.5
NBSB Avondcompetitie 2025-2026 Ronde 5 Monday 22 September 2025 +0–1=0 -16.7
NBSB Avondcompetitie 2025-2026 Ronde 4 Monday 22 September 2025 +0–1=0 -31.2
NBSB Avondcompetitie 2025-2026 Ronde 2 Monday 22 September 2025 +0–1=0
NBSB Avondcompetitie 2025-2026 Ronde 1 Monday 22 September 2025 +0–0=1
NBSB Avondcompetitie 2024-2025 Ronde 7 Monday 30 September 2024 +0–1=0
NBSB Avondcompetitie 2024-2025 Ronde 5 Monday 30 September 2024 +0–0=1
NBSB Avondcompetitie 2024-2025 Ronde 4 Monday 30 September 2024 +0–1=0

Rating History

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Peak Ratings

Classic 1490 March 1, 2026
Rapid 1490 March 1, 2026
Blitz 1490 March 1, 2026

Games

Wins 0
Losses 6
Draws 2
Win Rate 0%

Performance by Color

Color Wins Draws Losses Win Rate
White 0 2 0 0%
Black 0 0 6 0%

Recent Matches

Ginneken van, J. (Jos) (1699) Friday 27 February 2026 LOSS -20.5
Alibrahim, S. (Salah) (1742) Monday 2 February 2026 LOSS -16.7
Vonk, L. (Lars) (1652) Friday 12 December 2025 LOSS -31.2
Ligtenberg, B. (Bas) (1732) Friday 24 October 2025 LOSS
Helden van, J.C. (John) (1571) Thursday 25 September 2025 DRAW
Hert de, O.R. (Oliver) (1992) Friday 11 April 2025 LOSS
Joosen, J. (Jesse) (1762) Tuesday 11 February 2025 DRAW
Ooms, C. (Kees) (1904) Friday 17 January 2025 LOSS