KNSB FIDE

Marijn Demarteau

Rated since January 2023

1483 Classic

1501 Rapid

1456 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins

DOUMA, R.D. (RINZE) 1643

10470 Tata Steel Chess Tournament 2026 Tienkampen · Saturday 24 January 2026

CONTRERA NARANJO, N. (NÉSTOR) 1637

12100 13e Best of the West Groep B, ronde 1 · Saturday 18 October 2025

GERARDS, A.M.H. (BERT) 1609

13610 13e Best of the West Groep B, ronde 5 · Saturday 18 April 2026

GASE, H. (HARRY) 1606

12411 KNSB competitie 2025-2026 Klasse 6 Ronde 3 · Saturday 22 November 2025

HUISMAN, T. (TON) 1604

10470 Tata Steel Chess Tournament 2026 Tienkampen · Wednesday 28 January 2026

Worst losses

MOLAVI, A. (ANITA) 1421

12595 KNSB competitie 2025-2026 Klasse 6 ronde 4 · Saturday 13 December 2025

MAHABIERSING, C.G.J. (CASPAR) 1504

10470 Tata Steel Chess Tournament 2026 Tienkampen · Sunday 25 January 2026

GULAVE, D. (DEVRAN) 1521

10470 Tata Steel Chess Tournament 2026 Tienkampen · Friday 30 January 2026

SALA, F. (FRANK) 1568

11788 KC Rapid Rush Groep A · Friday 28 November 2025

ESHUIJS, J. (JEFFREY) 1580

11667 KC Open Groep A · Friday 10 October 2025

Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +2–4=3 +9.9

Amsterdam Chess Open Groep D1 Friday 24 October 2025 +2–2=2 -6.5

Haarlem Open Groep A Friday 6 March 2026 +0–0=1

Haarlem Open Groep A Friday 6 March 2026 +0–6=0 -17.4

KC Rapid Rush Groep A Friday 7 November 2025 +1–3=1 -32.9

13e Best of the West Groep B, ronde 5 Saturday 18 October 2025 +1–0=0 +17.6

13e Best of the West Groep B, ronde 2 Saturday 18 October 2025 +0–1=0 -5.2

13e Best of the West Groep B, ronde 1 Saturday 18 October 2025 +1–0=0 +17.5

SGA Competitie 2025-2026 4e Klasse ronde 7 en 8 Wednesday 1 October 2025 +1–0=0 +9.1

SGA Competitie 2025-2026 4e Klasse ronde 6 en 7 Wednesday 1 October 2025 +2–2=0 -13.2

SGA Competitie 2025-2026 4e Klasse ronde 5 en 6 Wednesday 1 October 2025 +0–0=1 +3.3

SGA Competitie 2025-2026 4e Klasse ronde 3 en 4 Wednesday 1 October 2025 +1–0=0

SGA Competitie 2025-2026 4e Klasse ronde 2 en 3 Wednesday 1 October 2025 +0–0=1 -0.1

SGA Competitie 2025-2026 4e Klasse ronde 1 Wednesday 1 October 2025 +1–0=0

KNSB competitie 2025-2026 Klasse 6 ronde 5 Saturday 20 September 2025 +0–2=0 -6.2

KNSB competitie 2025-2026 Klasse 6 ronde 7 Saturday 20 September 2025 +0–2=0 -9.4

KNSB competitie 2025-2026 Klasse 6 ronde 6 Saturday 20 September 2025 +0–1=0 -8.3

KNSB competitie 2025-2026 Klasse 6 ronde 4 Saturday 20 September 2025 +0–1=0 -7.4

KNSB competitie 2025-2026 Klasse 6 Ronde 3 Saturday 20 September 2025 +1–0=0 +17.0

KNSB competitie 2025-2026 Klasse 6 ronde 2 Saturday 20 September 2025 +0–1=0 -4.0

KNSB competitie 2025-2026 Klasse 6 ronde 1 Saturday 20 September 2025 +1–0=0 +6.7

KC Open Groep A Friday 5 September 2025 +0–5=0 -30.0

Rating History

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Peak Ratings

Classic 1581 March 1, 2024

Rapid 1545 Jan. 1, 2025

Blitz 1479 March 1, 2026

Games

Wins 14

Losses 30

Draws 9

Win Rate 26%

Performance by Color

Color	Wins	Draws	Losses	Win Rate
White	7	4	17	25%
Black	7	5	13	28%

Recent Matches

Gerards, A.M.H. (Bert) (1609) Saturday 18 April 2026 WIN +17.6

Singh, R. (Riaan) Thursday 16 April 2026 DRAW

Picozzi, L. (Luciano) (1355) Monday 13 April 2026 WIN +9.1

Haakman, L.P.A. (Leonard) (1809) Saturday 28 March 2026 LOSS -3.1

Clark, L.A. (Liam) Wednesday 18 March 2026 LOSS

Nieberg, D. (Debby) (1659) Tuesday 17 March 2026 LOSS -6.6

Teske, E. (Erik) (1679) Tuesday 10 March 2026 LOSS -6.1

Westra, G. (Ger) (1731) Saturday 7 March 2026 LOSS -4.7

Dekker, A. (Albert) (1835) Friday 6 March 2026 LOSS -2.7

Luthart, H. (Hans) Tuesday 3 March 2026 WIN

Dubrovsky, E.D. (Eduard) (1570) Thursday 12 February 2026 DRAW +3.3

Verhaart, R.F. (René) (1598) Saturday 7 February 2026 LOSS -8.3

Pelsmaeker, R. (Ronald) (1624) Sunday 1 February 2026 DRAW +5.0