KNSB FIDE
MF

Mark Folbert

Rated since January 2023

1830 Rapid

RIVALRY

Nemesis
Jellema, C.J. (Cris Jolmer)
Games: 3 · Win rate: 100%
Kryptonite
Meindersma, T. (Teun)
Games: 3 · Win rate: 0%

The good & the bad

Best wins
JELLEMA, C.J. (CRIS JOLMER) 1905
12662 De Donger interne competitie 2025-2026 RONDE 1-12 ronde 1-12 · Tuesday 23 September 2025
ZWART DE, J.J. (JELLE-JAN) 1872
12025 FSB-competitie 2025-2026 ronde 6 1e klasse · Thursday 26 March 2026
FABRIEK, T.E. (EDWIN) 1821
11833 FSB-competitie 2025-2026 Beker ronde 1 · Tuesday 18 November 2025
VRIES DE, B. (BEN) 1810
13297 FK Rapid voor teams - · Saturday 21 March 2026
MEINDERSMA, T. (THEO) 1764
13825 De Donger interne competitie 2025-2026 ronde 13-26 · Tuesday 27 January 2026
Worst losses
BOSMA, P.G. (PIETER) 1587
13297 FK Rapid voor teams - · Saturday 21 March 2026
HEIDE VAN DER, H. (HENK) 1767
13297 FK Rapid voor teams - · Saturday 21 March 2026
WIERSMA, T.R. (TJEERD) 1809
12008 FSB-competitie 2025-2026 ronde 2 1e klasse · Wednesday 5 November 2025
NICOLAI, L. (LEFFERT) 1882
12029 FSB-competitie 2025-2026 ronde 7 1e klasse · Friday 17 April 2026
ZWAAG VAN DER, B.P. (BAS) 1884
12033 FSB-competitie 2025-2026 Beker ronde 3 · Monday 2 March 2026
No FIDE-rated tournaments found.
FK Rapid voor teams - Saturday 21 March 2026 +3–4=0 -31.5
De Donger interne competitie 2025-2026 ronde 13-26 Tuesday 9 September 2025 +8–1=0 +42.0
De Donger interne competitie 2025-2026 RONDE 1-12 ronde 1-12 Tuesday 9 September 2025 +2–2=2 +7.7
FSB-competitie 2025-2026 ronde 7 1e klasse Monday 1 September 2025 +0–1=0 -13.5
FSB-competitie 2025-2026 Beker halve finale Monday 1 September 2025 +0–1=0 -7.7
FSB-competitie 2025-2026 ronde 6 1e klasse Monday 1 September 2025 +1–0=0 +11.1
FSB-competitie 2025-2026 Beker ronde 3 Monday 1 September 2025 +0–1=0 -13.5
FSB-competitie 2025-2026 ronde 5 1e klasse Monday 1 September 2025 +0–1=0 -10.9
FSB-competitie 2025-2026 Beker ronde 2 Monday 1 September 2025 +0–0=1 -2.7
FSB-competitie 2025-2026 ronde 4 1e klasse Monday 1 September 2025 +1–0=0 +3.7
FSB-competitie 2025-2026 ronde 3 1e klasse Monday 1 September 2025 +0–0=1 -2.1
FSB-competitie 2025-2026 Beker ronde 1 Monday 1 September 2025 +1–0=0 +8.9
FSB-competitie 2025-2026 ronde 2 1e klasse Monday 1 September 2025 +0–1=0 -16.5

Team Competition

Current teams
De Donger
Beker · 2025-2026 · 4 games
De Donger 1
1e klasse B · 2025-2026 · 7 games
Past teams
De Donger
Beker · 2024-2025
De Donger 1
1e klasse A · 2024-2025
De Donger
Beker · 2023-2024
De Donger 1
Eerste klasse A · 2023-2024
De Donger
Beker · 2022-2023
De Donger 1
Klasse 1A · 2022-2023
De Donger 1
Hoofdklasse · 2021-2022
De Donger 3
Klasse 3 · 2021-2022

Rating History

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Peak Ratings

Classic 1932 June 1, 2026
Rapid 1862 Oct. 1, 2024
Blitz 1913 March 1, 2026

Games

Wins 16
Losses 12
Draws 4
Win Rate 50%

Performance by Color

Color Wins Draws Losses Win Rate
White 7 3 5 47%
Black 9 1 7 53%

Recent Matches

Jellema, C.J. (Cris Jolmer) (1858) Tuesday 21 April 2026 WIN +10.7
Nicolai, L. (Leffert) (1882) Friday 17 April 2026 LOSS -13.5
Visser, H.B. (Hein Bauke) (1647) Tuesday 14 April 2026 WIN +4.4
Schram, T. (Tjitze) (2055) Tuesday 7 April 2026 LOSS -7.7
Zwart de, J.J. (Jelle-Jan) (1872) Thursday 26 March 2026 WIN +11.1
Sinia, S.A. (Sjouke Atze) (1690) Tuesday 24 March 2026 WIN +5.4
Vries de, B. (Ben) (1810) Saturday 21 March 2026 WIN +10.7
Oppenhuizen, W.G. (Wiebe) (1715) Saturday 21 March 2026 WIN +7.6
Bosma, P.G. (Pieter) (1587) Saturday 21 March 2026 LOSS -20.8
Heide van der, H. (Henk) (1767) Saturday 21 March 2026 LOSS -15.8
Lootsma, J. (Jan) (1938) Saturday 21 March 2026 LOSS -9.9
Veen van der, R. (Ronald) (1977) Saturday 21 March 2026 LOSS -8.6
Aartsma, J. (Jan) (1631) Saturday 21 March 2026 WIN +5.2
Meindersma, T. (Teun) (1997) Tuesday 10 March 2026 LOSS -9.6
Dijkstra, R. (Rens) (1637) Tuesday 3 March 2026 WIN +4.2
Zwaag van der, B.P. (Bas) (1884) Monday 2 March 2026 LOSS -13.5
Jong de, W. (Wiebe) (1699) Tuesday 24 February 2026 WIN +5.4
Jhirad, N.R. (Nick) (1970) Tuesday 10 February 2026 LOSS -10.9
Wiersma, G. (Gosse) (1653) Tuesday 3 February 2026 WIN +4.3
Meindersma, T. (Theo) (1764) Tuesday 27 January 2026 WIN +7.1