KNSB FIDE
MP

Mark Pieterse

Rated since January 2023

1956 Classic
1949 Rapid
1823 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
ROGOZYANSKIY, A. (ALEXANDER) 2083
12991 KNSB competitie 2025-2026 Klasse 4 ronde 7 · Saturday 7 February 2026
OORT VAN, M. (MARCEL) 1915
13382 S.C. Woerden interne competitie 03-02-2026 t/m 24-03-2026 (060067) · Tuesday 10 March 2026
KOHLBECK, A.J.W. (TON) 1874
13528 KNSB competitie 2025-2026 Klasse 4 ronde 9 · Saturday 11 April 2026
SCHEERINGA, H.T. (HANS) 1756
12774 SOS competitie 2025/2026 Lijst 1 feb · Tuesday 20 January 2026
VOGEL DE, I.J.M. (ISAÏ) 1607
12912 S.C. Woerden interne competitie 27-01-2026 t/m 27-01-2026 (060067) · Tuesday 27 January 2026
Worst losses
ROGGEBAND, J.W. (JENS) 1712
12912 S.C. Woerden interne competitie 27-01-2026 t/m 27-01-2026 (060067) · Tuesday 27 January 2026
OORT VAN, M. (MARCEL) 1874
12912 S.C. Woerden interne competitie 27-01-2026 t/m 27-01-2026 (060067) · Tuesday 27 January 2026
VERBERNE, B. (BAS) 1879
12912 S.C. Woerden interne competitie 27-01-2026 t/m 27-01-2026 (060067) · Tuesday 27 January 2026
BETTMAN, J. (JAN) 1911
12776 SOS competitie 2025/2026 Lijst 1 apr · Tuesday 17 March 2026
JONG DE, L.M. (LEEN) 2009
12911 S.C. Woerden interne competitie 06-01-2026 t/m 20-01-2026 (060067) · Tuesday 13 January 2026
No FIDE-rated tournaments found.
S.C. Woerden interne competitie 27-01-2026 t/m 27-01-2026 (060067) Tuesday 27 January 2026 +3–4=2 -59.4
KNSB competitie 2025-2026 Klasse 4 ronde 9 Saturday 20 September 2025 +1–0=0 +10.2
KNSB competitie 2025-2026 Klasse 4 ronde 6 Saturday 20 September 2025 +0–0=1 -1.5
KNSB competitie 2025-2026 Klasse 4 ronde 8 Saturday 20 September 2025 +0–1=0 -9.2
KNSB competitie 2025-2026 Klasse 4 ronde 7 Saturday 20 September 2025 +1–0=0 +16.8
S.C. Woerden interne competitie 31-03-2026 t/m 21-04-2026 (060067) Tuesday 9 September 2025 +0–0=2 +3.7
S.C. Woerden interne competitie 03-02-2026 t/m 24-03-2026 (060067) Tuesday 9 September 2025 +1–2=0 -2.9
S.C. Woerden interne competitie 06-01-2026 t/m 20-01-2026 (060067) Tuesday 9 September 2025 +0–1=0 -11.3
SOS competitie 2025/2026 Lijst 1 apr Monday 1 September 2025 +0–1=0 -14.5
SOS competitie 2025/2026 Lijst 1 mrt Monday 1 September 2025 +0–0=1 -3.3
SOS competitie 2025/2026 Lijst 1 feb Monday 1 September 2025 +1–0=0 +5.6
SOS competitie 2025/2026 Lijst 1 jan Monday 1 September 2025 +0–1=0 -10.8

Rating History

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Peak Ratings

Classic 1976 Nov. 1, 2025
Rapid 1949 Jan. 1, 2025
Blitz 1882 March 1, 2025

Games

Wins 7
Losses 10
Draws 6
Win Rate 30%

Performance by Color

Color Wins Draws Losses Win Rate
White 5 4 2 45%
Black 2 2 8 17%

Recent Matches

Oosterlaken, E. (Ed) (2093) Tuesday 14 April 2026 DRAW +5.0
Kohlbeck, A.J.W. (Ton) (1874) Saturday 11 April 2026 WIN +10.2
Verberne, B. (Bas) (1930) Tuesday 31 March 2026 DRAW -1.4
Hertog ten, A. (Albertus) (1926) Saturday 28 March 2026 DRAW -1.5
Bettman, J. (Jan) (1911) Tuesday 17 March 2026 LOSS -14.5
Oort van, M. (Marcel) (1915) Tuesday 10 March 2026 WIN +10.6
Dam, T. (Thijs) (2066) Saturday 7 March 2026 LOSS -9.2
Donk van, O.J. (Olger) (2146) Tuesday 3 March 2026 LOSS -6.7
Lind, J.J. (Jacco) (2130) Tuesday 24 February 2026 LOSS -6.8
Wendt, D. (Daniel) (1860) Wednesday 11 February 2026 DRAW -3.3
Rogozyanskiy, A. (Alexander) (2083) Saturday 7 February 2026 WIN +16.8
Verberne, B. (Bas) (1879) Tuesday 27 January 2026 LOSS -12.6
Lind, J.J. (Jacco) (2100) Tuesday 27 January 2026 LOSS -5.6
Janssen, F.W.V.M. (Frans) (1534) Tuesday 27 January 2026 DRAW -9.7
Theunis, F. (Frans) (1464) Tuesday 27 January 2026 WIN +1.8
Hessing, L. (Larissa) (1463) Tuesday 27 January 2026 DRAW -10.7
Oort van, M. (Marcel) (1874) Tuesday 27 January 2026 LOSS -12.8
Vogel de, I.J.M. (Isaï) (1607) Tuesday 27 January 2026 WIN +4.2
Roggeband, J.W. (Jens) (1712) Tuesday 27 January 2026 LOSS -18.1
Weideman, X.F. (Xian) (1604) Tuesday 27 January 2026 WIN +4.1