KNSB FIDE
MR

Maarten Roorda

Rated since January 2023

1935 Classic
1937 Rapid
1879 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
LEEST VAN DER, B.G. (BERT) 2037
12264 KNSB competitie 2025-2026 Klasse 4 ronde 3 · Saturday 1 November 2025
HOOGEVEEN, R. (RIENK) 1952
13247 KNSB competitie 2025-2026 Klasse 4 ronde 8 · Saturday 7 March 2026
VISSCHER, J. (JARNO) 1943
9436 KNSB competitie 2024-2025 Klasse 4 ronde 1 · Saturday 21 September 2024
BOONTJE, W. (WILLEM) 1942
12593 KNSB competitie 2025-2026 Klasse 4 ronde 5 · Saturday 13 December 2025
MANENSCHIJN, W. (WOUTER) 1934
11529 NOSBO snelschaken voor teams 2025 Turnus 2 · Saturday 21 June 2025
Worst losses
POMPSTRA, H. (HENK) 1689
8347 NOSBO-competitie 2023-2024 Januari 2024 · Thursday 11 January 2024
VELDE TEN, J.J.J. (JEFFREY) 1739
6984 NOSBO competitie 2022-2023 April 2023 · Friday 7 April 2023
WIJBENGA, F.H. (FRITS) 1746
7805 KNSB competitie 2023-2024 Klasse 4 ronde 4 · Saturday 25 November 2023
WITKAMP, T.F. (THEO) 1763
13118 NOSBO-competitie 2025-2026 ronde 5 (minus één uitgestelde wedstrijd)… · Friday 20 February 2026
DRENT, K.A. (KOR) 1777
10835 NOSBO competitie 2024-2025 Maart 2025 · Friday 7 March 2025
No FIDE-rated tournaments found.
NOSBO-competitie 2025-2026 ronde 5 (minus één uitgestelde wedstrijd)… Monday 16 February 2026 +1–1=0 -11.9
NOSBO-competitie 2025-2026 ronde 4 Groep A Monday 19 January 2026 +1–0=0 +10.7
KNSB competitie 2025-2026 Klasse 4 ronde 9 Saturday 20 September 2025 +0–0=1 -2.0
KNSB competitie 2025-2026 Klasse 4 ronde 6 Saturday 20 September 2025 +0–0=1 +0.6
KNSB competitie 2025-2026 Klasse 4 ronde 8 Saturday 20 September 2025 +1–0=0 +13.5
KNSB competitie 2025-2026 Klasse 4 ronde 7 Saturday 20 September 2025 +1–0=0 +11.2
KNSB competitie 2025-2026 Klasse 4 ronde 5 Saturday 20 September 2025 +1–0=0 +14.0
KNSB competitie 2025-2026 Klasse 4 ronde 3 Saturday 20 September 2025 +1–0=0 +17.7
Cocoon 2025 Open Saturday 6 September 2025 +2–3=2 -25.2
NOSBO snelschaken voor teams 2025 Turnus 2 Saturday 21 June 2025 +1–3=0 -27.2
NOSBO competitie 2024-2025 April 2025 Saturday 1 March 2025 +1–0=0 +6.4
NOSBO competitie 2024-2025 Januari 2025 Monday 13 January 2025 +0–0=1 -2.5
NOSBO competitie 2024-2025 Maart 2025 Wednesday 1 January 2025 +0–1=0 -17.2
NOSBO competitie 2024-2025 Februari 2025 Wednesday 1 January 2025 +1–0=0 +9.1
NOSBO competitie 2024-2025 November 2024 Monday 14 October 2024 +1–0=0
KNSB competitie 2024-2025 Klasse 4 ronde 8 Saturday 21 September 2024 +0–1=0 -11.8
KNSB competitie 2024-2025 Klasse 4 ronde 7 Saturday 21 September 2024 +1–0=0 +10.4
KNSB competitie 2024-2025 Klasse 4 ronde 6 Saturday 21 September 2024 +1–0=0 +10.7
KNSB competitie 2024-2025 Klasse 4 ronde 5 Saturday 21 September 2024 +0–0=1 +1.8
KNSB competitie 2024-2025 Klasse 4 ronde 4 Saturday 21 September 2024 +0–0=1 +1.8
KNSB competitie 2024-2025 Klasse 4 ronde 3 Saturday 21 September 2024 +0–0=1 +3.6
KNSB competitie 2024-2025 Klasse 4 ronde 1 Saturday 21 September 2024 +1–0=0 +14.8
NOSBO-competitie 2023-2024 Juni 2024 Sunday 1 October 2023 +0–0=1 -0.1
NOSBO-competitie 2023-2024 Maart 2024 Sunday 1 October 2023 +1–1=0 -0.9
NOSBO-competitie 2023-2024 Januari 2024 Sunday 1 October 2023 +1–1=0 -16.9
NOSBO-competitie 2023-2024 December 2023 Sunday 1 October 2023 +0–1=0 -13.9
NOSBO competitie 2023-2024 November 2023 Sunday 1 October 2023 +0–0=1 -5.4
KNSB competitie 2023-2024 Klasse 4 ronde 9 Saturday 16 September 2023 +0–0=1 +2.9
KNSB competitie 2023-2024 Klasse 3 ronde 8 Saturday 16 September 2023 +0–1=0 -10.0
KNSB competitie 2023-2024 Klasse 4 ronde 7 Saturday 16 September 2023 +1–0=0 +9.7
KNSB competitie 2023-2024 Klasse 4 ronde 6 Saturday 16 September 2023 +0–1=0 -8.2
KNSB competitie 2023-2024 Klasse 4 ronde 5 Saturday 16 September 2023 +1–0=0 +8.1
KNSB competitie 2023-2024 Klasse 4 ronde 4 Saturday 16 September 2023 +0–1=0 -15.9
KNSB competitie 2023-2024 Klasse 4 ronde 3 Saturday 16 September 2023 +0–0=1 +0.9
KNSB competitie 2023-2024 Klasse 4 ronde 1 Saturday 16 September 2023 +0–1=0 -9.5
Open Junivierkampen Groninger Combinatie Groep A Thursday 8 June 2023 +2–1=0 +10.3
Chess Festival Groningen Mini Wednesday 21 December 2022 +0–2=1 -19.2
NOSBO competitie 2022-2023 Juni 2023 - beker Monday 24 October 2022 +1–0=0 +9.8
NOSBO competitie 2022-2023 April 2023 Monday 24 October 2022 +0–1=0 -16.3
NOSBO competitie 2022-2023 Maart 2023 - beker Monday 24 October 2022 +0–0=1 +2.5
NOSBO competitie 2022-2023 Maart 2023 Monday 24 October 2022 +1–0=0 +9.5
NOSBO competitie 2022-2023 Januari 2023 Monday 24 October 2022 +1–0=0 +4.6
NOSBO competitie 2022-2023 December 2022 Monday 24 October 2022 +0–1=0 -13.8
NOSBO competitie 2022-2023 December 2022 - beker Monday 24 October 2022 +1–0=0 +9.6
KNSB competitie 2022-2023 Klasse 3 ronde 7 Saturday 17 September 2022 +0–0=1 +0.4
KNSB competitie 2022-2023 Klasse 3 ronde 5 Saturday 17 September 2022 +0–0=1 -2.7
KNSB competitie 2022-2023 Klasse 3 ronde 4 Saturday 17 September 2022 +1–0=0 +13.2

Team Competition

Current teams
SISSA 2
Klasse 4A · 2025-2026 · 6 games
SISSA I
Hoofdklasse · 2025-2026 · 2 games
SISSA II
Klasse 1B · 2025-2026 · 1 game
Past teams
SISSA 2
Klasse 4A · 2024-2025
SISSA I
Achttallen 1e fase A · 2024-2025
SISSA I
Achttallen 2e fase A · 2024-2025
SISSA
Beker 1900 · 2023-2024
SISSA 1
Klasse 3A · 2023-2024
SISSA 2
Klasse 4A · 2023-2024
SISSA I
Achttallen 1e fase B · 2023-2024
SISSA I
Achttallen 2e fase A · 2023-2024
SISSA 1
Klasse 3B · 2022-2023
SISSA I
Achttallen B · 2022-2023
SISSA 1
Klasse 2A · 2021-2022
SISSA 2
Klasse 4A · 2021-2022
SISSA II
Achttallen B · 2021-2022

Rating History

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Peak Ratings

Classic 1937 April 1, 2026
Rapid 1937 May 1, 2026
Blitz 1879 July 1, 2025

Games

Wins 26
Losses 21
Draws 16
Win Rate 41%

Performance by Color

Color Wins Draws Losses Win Rate
White 16 9 10 46%
Black 10 7 11 36%

Recent Matches

Vermeulen, F. (Frans) (1879) Saturday 11 April 2026 DRAW -2.0
Clarenburg, E. (Ewout) (1940) Saturday 28 March 2026 DRAW +0.6
Hoogeveen, R. (Rienk) (1952) Saturday 7 March 2026 WIN +13.5
Sliedrecht, L.R. (Rens) (1722) Friday 20 February 2026 WIN +6.0
Witkamp, T.F. (Theo) (1763) Friday 20 February 2026 LOSS -17.8
Bruinsma, J. (Jura) (1887) Saturday 7 February 2026 WIN +11.2
Pol, D. (Douwe) (1860) Tuesday 20 January 2026 WIN +10.7
Boontje, W. (Willem) (1942) Saturday 13 December 2025 WIN +14.0
Leest van der, B.G. (Bert) (2037) Saturday 1 November 2025 WIN +17.7
Zotikishvili, Dimitri (1954) Friday 12 September 2025 LOSS -10.8
Castelein, Dirk (1966) Thursday 11 September 2025 DRAW +2.1
Daems, Thibaut (1727) Wednesday 10 September 2025 WIN +6.6
De Winter, Roman (1811) Tuesday 9 September 2025 LOSS -15.8
Roose, H. (Hoara) (1669) Tuesday 9 September 2025 WIN +5.1
Tabsho, Hassan (1620) Sunday 7 September 2025 DRAW -8.5
Verheyen, O. (Olivier) (2198) Saturday 6 September 2025 LOSS -3.8
Foreest van, N. (Nanne) (1922) Saturday 21 June 2025 LOSS -11.9
Hofstra, T.W. (Tijmen) (1807) Saturday 21 June 2025 LOSS -15.9
Hamstra, B. (Bas) (1897) Saturday 21 June 2025 LOSS -12.8
Manenschijn, W. (Wouter) (1934) Saturday 21 June 2025 WIN +13.5