KNSB FIDE
TM

Theo Meindersma

Rated since January 2026

1811 Classic
1833 Rapid
1776 Blitz

RIVALRY

Nemesis
Sinia, S.A. (Sjouke Atze)
Games: 3 · Win rate: 67%

The good & the bad

Best wins
FOLBERT, M. (MARK) 1922
12662 De Donger interne competitie 2025-2026 RONDE 1-12 ronde 1-12 · Tuesday 21 October 2025
ROS, G. (GERKE) 1911
14150 S.V. Schaakwoude interne competitie 28-05-2026 t/m 25-06-2026 (01002… · Thursday 11 June 2026
VISSER, J. (JOS) 1707
13825 De Donger interne competitie 2025-2026 ronde 13-26 · Tuesday 24 February 2026
NAGEL, D. (DOEDE) 1703
12030 FSB-competitie 2025-2026 ronde 7 2e klasse · Tuesday 14 April 2026
SINIA, S.A. (SJOUKE ATZE) 1697
13825 De Donger interne competitie 2025-2026 ronde 13-26 · Tuesday 6 January 2026
Worst losses
VISSER, J. (JOS) 1683
12662 De Donger interne competitie 2025-2026 RONDE 1-12 ronde 1-12 · Tuesday 23 September 2025
SINIA, S.A. (SJOUKE ATZE) 1690
13825 De Donger interne competitie 2025-2026 ronde 13-26 · Tuesday 21 April 2026
VEEN VAN DER, A. (ALLE) 1802
11836 FSB-competitie 2025-2026 ronde 1 2e klasse · Monday 6 October 2025
VROOM, B. (BAUKE) 1835
14150 S.V. Schaakwoude interne competitie 28-05-2026 t/m 25-06-2026 (01002… · Thursday 25 June 2026
JELLEMA, C.J. (CRIS JOLMER) 1858
13825 De Donger interne competitie 2025-2026 ronde 13-26 · Tuesday 7 April 2026
No FIDE-rated tournaments found.
S.V. Schaakwoude interne competitie 28-05-2026 t/m 25-06-2026 (01002… Thursday 28 May 2026 +4–2=0 +22.4
De Donger interne competitie 2025-2026 ronde 13-26 Tuesday 9 September 2025 +6–4=2 +12.1
De Donger interne competitie 2025-2026 RONDE 1-12 ronde 1-12 Tuesday 9 September 2025 +4–2=3
FSB-competitie 2025-2026 ronde 7 2e klasse Monday 1 September 2025 +1–0=0 +23.0
FSB-competitie 2025-2026 ronde 5 2e klasse Monday 1 September 2025 +0–0=1 +11.8
FSB-competitie 2025-2026 ronde 4 2e klasse Monday 1 September 2025 +0–0=1
FSB-competitie 2025-2026 ronde 3 2e klasse Monday 1 September 2025 +1–0=0
FSB-competitie 2025-2026 ronde 2 2e klasse Monday 1 September 2025 +0–1=0
FSB-competitie 2025-2026 ronde 1 2e klasse Monday 1 September 2025 +0–1=0

Team Competition

Current team
De Donger 2
2e klasse A · 2025-2026 · 6 games

Rating History

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Peak Ratings

Classic 1811 June 1, 2026
Rapid 1833 Sept. 1, 2026
Blitz 1776 March 1, 2026

Games

Wins 16
Losses 10
Draws 7
Win Rate 48%

Performance by Color

Color Wins Draws Losses Win Rate
White 8 3 6 47%
Black 8 4 4 50%

Recent Matches

Bouma, P. (Piet) (1434) Thursday 25 June 2026 WIN +5.6
Vroom, B. (Bauke) (1835) Thursday 25 June 2026 LOSS -25.1
Heikamp, H. (Hendrik) (2110) Thursday 18 June 2026 LOSS -7.7
Sinia, S.A. (Sjouke Atze) (1594) Thursday 18 June 2026 WIN +13.2
Ros, G. (Gerke) (1911) Thursday 11 June 2026 WIN +36.4
Campen van, F. (Fenna) (793) Thursday 11 June 2026 WIN
Sinia, S.A. (Sjouke Atze) (1690) Tuesday 21 April 2026 LOSS -35.7
Nagel, D. (Doede) (1703) Tuesday 14 April 2026 WIN +23.0
Jellema, C.J. (Cris Jolmer) (1858) Tuesday 7 April 2026 LOSS -22.3
Meinsma, L. (Lut) (1376) Tuesday 31 March 2026 WIN +4.7
Keizer, B.G. (Bernard) (1747) Tuesday 24 March 2026 DRAW -2.3
Visser, H.B. (Hein Bauke) (1633) Tuesday 10 March 2026 WIN +17.8
Wiersma, G. (Gosse) (1653) Tuesday 3 March 2026 WIN +19.3
Visser, J. (Jos) (1707) Tuesday 24 February 2026 WIN +25.2
Postma, P. (Pieter) (1911) Monday 9 February 2026 DRAW +11.8
Koopmans, M. (Marten) (1682) Tuesday 3 February 2026 WIN +23.2
Folbert, M. (Mark) (1927) Tuesday 27 January 2026 LOSS -17.0
Jellema, C.J. (Cris Jolmer) (1858) Tuesday 13 January 2026 LOSS -22.2
Sinia, S.A. (Sjouke Atze) (1697) Tuesday 6 January 2026 WIN +24.4
Keizer, B.G. (Bernard) (1763) Tuesday 23 December 2025 DRAW -2.8