KNSB FIDE
RM

River Mesman

Rated since March 2026

1486 Classic
1656 Rapid
1486 Blitz

RIVALRY

Nemesis
Jong de, T. (Tjeerd)
Games: 3 · Win rate: 0%
Kryptonite
Schley, A.W. (Alfred)
Games: 3 · Win rate: 0%

The good & the bad

Best wins
BRUMMELAAR, J.L.J. (LESLEY) 1738
12993 KNSB competitie 2025-2026 Klasse 6 ronde 6 · Saturday 7 February 2026
CHRISPIJN, C. (CHRISTOPHER) 1584
13250 46e Open Apeldoornse Jeugdschaak Kampioenschappen Kampioensgroep · Saturday 28 February 2026
JONKER, M. (MANUEL) 1576
12777 SOS competitie 2025/2026 Lijst 1 mei · Tuesday 21 April 2026
PIHLAJAMAA, L.J. (JOAS) 1569
13250 46e Open Apeldoornse Jeugdschaak Kampioenschappen Kampioensgroep · Saturday 28 February 2026
NIJMEIJER, J. (JOEP) 1240
12790 OSBO PJK 2026 Groep AB · Saturday 17 January 2026
Worst losses
POL, F.I. (FLORIAN) 1703
12595 KNSB competitie 2025-2026 Klasse 6 ronde 4 · Saturday 13 December 2025
JONG DE, T. (TJEERD) 1708
12411 KNSB competitie 2025-2026 Klasse 6 Ronde 3 · Saturday 22 November 2025
LOGTENBERG, M. (MARTIN) 1725
9644 KNSB competitie 2024-2025 Klasse 5 ronde 1 · Saturday 12 October 2024
PEELEN, C. (CHARLES) 1762
12790 OSBO PJK 2026 Groep AB · Sunday 18 January 2026
PARDIJS, R.R. (RICHARD) 1764
13249 KNSB competitie 2025-2026 Klasse 6 ronde 7 · Saturday 7 March 2026
No FIDE-rated tournaments found.
46e Open Apeldoornse Jeugdschaak Kampioenschappen Kampioensgroep Saturday 28 February 2026 +2–2=1 +83.9
OSBO PJK 2026 Groep AB Saturday 17 January 2026 +2–3=1
KNSB competitie 2025-2026 Klasse 6 ronde 5 Saturday 20 September 2025 +0–1=0 -10.6
KNSB competitie 2025-2026 Klasse 6 ronde 7 Saturday 20 September 2025 +0–1=0 -18.1
KNSB competitie 2025-2026 Klasse 6 ronde 6 Saturday 20 September 2025 +1–0=0
KNSB competitie 2025-2026 Klasse 6 ronde 4 Saturday 20 September 2025 +0–2=0
KNSB competitie 2025-2026 Klasse 6 Ronde 3 Saturday 20 September 2025 +0–3=0
KNSB competitie 2025-2026 Klasse 6 ronde 2 Saturday 20 September 2025 +0–3=0
SOS competitie 2025/2026 Lijst 1 mei Monday 1 September 2025 +1–0=0 +50.9
KNSB competitie 2024-2025 Klasse 5 ronde 1 Saturday 21 September 2024 +0–3=0

Rating History

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Peak Ratings

Classic 1510 March 1, 2026
Rapid 1656 April 1, 2026
Blitz 1510 March 1, 2026

Games

Wins 6
Losses 18
Draws 2
Win Rate 23%

Performance by Color

Color Wins Draws Losses Win Rate
White 4 0 12 25%
Black 2 2 6 20%

Recent Matches

Jonker, M. (Manuel) (1576) Tuesday 21 April 2026 WIN +50.9
Vegt van der, E. (Els) (1861) Saturday 28 March 2026 LOSS -10.6
Pardijs, R.R. (Richard) (1764) Saturday 7 March 2026 LOSS -18.1
Roelofs, R. (Rick) (1750) Saturday 28 February 2026 DRAW +21.6
Pihlajamaa, L.J. (Joas) (1569) Saturday 28 February 2026 WIN +45.0
Haarsma, S.I. (Syb) (1784) Saturday 28 February 2026 LOSS -19.3
Chrispijn, C. (Christopher) (1584) Saturday 28 February 2026 WIN +46.8
Ouwerkerk, R.H. (Rauf) (1905) Saturday 28 February 2026 LOSS -10.1
Brummelaar, J.L.J. (Lesley) (1738) Saturday 7 February 2026 WIN
Feenstra, B. (Bram) (1867) Sunday 18 January 2026 LOSS
Peelen, C. (Charles) (1762) Sunday 18 January 2026 LOSS
Verbruggen, G. (Gijs) (1835) Sunday 18 January 2026 DRAW
Güven, R. (Robin) (969) Saturday 17 January 2026 WIN
Le, J. (Jet) (1904) Saturday 17 January 2026 LOSS
Nijmeijer, J. (Joep) (1240) Saturday 17 January 2026 WIN
Pol, F.I. (Florian) (1703) Saturday 13 December 2025 LOSS
Pol, F.I. (Florian) (1703) Saturday 13 December 2025 LOSS
Jong de, T. (Tjeerd) (1708) Saturday 22 November 2025 LOSS
Jong de, T. (Tjeerd) (1708) Saturday 22 November 2025 LOSS
Jong de, T. (Tjeerd) (1708) Saturday 22 November 2025 LOSS