KNSB FIDE

John Markus

Rated since January 2023

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins

SMID, J. (JELLE) 2199

11267 UniClass Science Park Amsterdam Schaaktoernooi Groep A · Saturday 5 July 2025

JONG DE, T.J. (TOM) (FM) 2156

7010 Amsterdam Science Park Schaaktoernooi Groep A · Sunday 23 July 2023

KOSSEN, J. (JOHANNES) 2115

11706 Open NK Schaken 2025 Reserve A · Friday 25 July 2025

MANSHANDEN, N.M. (NICK) 2110

7010 Amsterdam Science Park Schaaktoernooi Groep A · Saturday 22 July 2023

THEULINGS, P.P. (PAUL-PETER) (CM) 2103

11267 UniClass Science Park Amsterdam Schaaktoernooi Groep A · Monday 7 July 2025

Worst losses

KNOL, D. (DANIËL) 1853

6567 HSG Open 2023 Groep A · Friday 23 June 2023

EEFTING, C. (MARTIJN) 1875

5803 Open Kampioenschap van Utrecht Groep A · Friday 19 May 2023

VRIES DE, L.J.A. (LEON) 1881

6567 HSG Open 2023 Groep A · Sunday 25 June 2023

ULBRICH, LUIS ROBERTO 1885

10090 HSG Open 2025 Groep A · Sunday 22 June 2025

RITZERVELD, N. (NOAH) (FM) 1887

6567 HSG Open 2023 Groep A · Friday 23 June 2023

85e Daniel Noteboomtoernooi 4 kampen Friday 20 February 2026 +2–4=0 -23.9

Open Schaakkampioenschap van Arnhem Groep A Friday 5 September 2025 +2–2=2 -5.4

Open NK Schaken 2025 Reserve A Tuesday 22 July 2025 +5–3=1 +29.0

UniClass Science Park Amsterdam Schaaktoernooi Groep A Saturday 5 July 2025 +2–4=1 +14.3

HSG Open 2025 Groep A Friday 20 June 2025 +0–4=2 -25.9

17e BPB Limburg Open 2025 Groep B Friday 6 June 2025 +4–2=1 +23.1

50e Open Kampioenschap van Utrecht Groep A Friday 30 May 2025 +2–3=0 -1.7

Open NK Schaken 2024 Reserve A Monday 22 July 2024 +3–3=0 -8.0

Amsterdam Science Park Chess Tournament Groep A Saturday 13 July 2024 +0–3=4 -26.3

HSG Open 2024 Groep A Friday 21 June 2024 +3–3=0 +11.6

Amsterdam Science Park Schaaktoernooi Groep A Saturday 15 July 2023 +4–3=2 +30.3

HSG Open 2023 Groep A Friday 23 June 2023 +1–3=2 -41.7

Open Kampioenschap van Utrecht Groep A Friday 19 May 2023 +2–3=0 -17.5

KNSB competitie 2023-2024 Klasse 2 ronde 1 Saturday 16 September 2023 +0–1=0 -6.9

Chessable Open NK 2023 Open NK Monday 24 July 2023 +1–5=2 -16.4

Chess Festival Groningen Open A Wednesday 21 December 2022 +0–5=2 -44.5

Rating History

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Peak Ratings

Classic 2087 Jan. 1, 2023

Rapid 2006 March 1, 2026

Blitz 2006 March 1, 2026

Games

Wins 31

Losses 51

Draws 19

Win Rate 31%

Performance by Color

Color	Wins	Draws	Losses	Win Rate
White	20	12	21	38%
Black	11	7	30	23%

Recent Matches

Argirov, D. (Dimitar) (2002) Sunday 22 February 2026 LOSS -12.6

Timmermans, R. (Raymond) (2012) Saturday 21 February 2026 WIN +12.7

Sonneveld, D.W.A. (David) (2020) Friday 20 February 2026 LOSS -12.0

Schoffelmeer, J. (Jetse) (1935) Sunday 7 September 2025 WIN +9.9

Baaren van, J.A. (Joris) (1961) Sunday 7 September 2025 WIN +10.8

Omnes, T. (Tiago) (1944) Saturday 6 September 2025 LOSS -14.8

Huang, V. (Vincent) (1921) Saturday 6 September 2025 DRAW -1.6

Shah, S.P. (Shrey) (1890) Saturday 6 September 2025 DRAW -4.1

Pavoordt van de, M. (Max) (2229) Friday 5 September 2025 LOSS -5.6

Trunz, Tamila (1971) Wednesday 30 July 2025 WIN +12.6

Vries de, T. (Tobias) (1950) Tuesday 29 July 2025 LOSS -13.1

Egmond van, R.M. (Rogier) (2013) Monday 28 July 2025 LOSS -10.9

Habig, B.R. (Bryan) (2084) Sunday 27 July 2025 WIN +16.4

Mienis, D. (Dennis) (2035) Saturday 26 July 2025 DRAW +2.3

Kossen, J. (Johannes) (2115) Friday 25 July 2025 WIN +17.4

Bosveld, M. (Mattias) (1768) Thursday 24 July 2025 WIN +6.1

Kommer, B. (Bas) (2043) Wednesday 23 July 2025 LOSS -9.9