KNSB FIDE
AG

Aldert-Jan Grashuis

Rated since January 2023

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
LOOTSMA, J. (JAN) 2002
6966 KNSB competitie 2022-2023 Klasse 3 ronde 8 · Saturday 1 April 2023
HOOP DE, S. (SIPKE) 1975
6167 KNSB competitie 2022-2023 Klasse 3 ronde 4 · Saturday 26 November 2022
WIERENGA, J. (JAËL) 1906
6248 Chess Festival Groningen Open B · Friday 23 December 2022
MULLER, S.K. (KENNETH) 1891
6248 Chess Festival Groningen Open B · Monday 26 December 2022
HOUTSMA, S.H. (SYBRAND) 1842
6555 KNSB competitie 2022-2023 Klasse 3 ronde 6 · Saturday 11 February 2023
Worst losses
STARA, ZUZANA 1644
CZECH OPEN 2023 - B · Tuesday 25 July 2023
FRIEDLAND, MANFRED 1668
CZECH OPEN 2023 - B · Sunday 23 July 2023
ZOBEL, CHRISTIAN 1715
CZECH OPEN 2023 - B · Saturday 29 July 2023
SAID, O.A. (OMAR) 1801
8205 Chess Festival Groningen Compact B · Tuesday 26 December 2023
ALHEJAB, MESHAL 1857
6248 Chess Festival Groningen Open B · Saturday 24 December 2022
Chessfestival Groningen Compact Groep B Friday 26 December 2025 +3–0=2 +28.1
Chess Festival Groningen Compact B Thursday 21 December 2023 +1–1=3 -8.2
CZECH OPEN 2023 - B Saturday 22 July 2023 +3–3=3 -52.9
Chess Festival Groningen Open B Wednesday 21 December 2022 +2–2=4 +1.9
KNSB competitie 2022-2023 Klasse 3 ronde 9 Saturday 17 September 2022 +0–0=1 +4.5
KNSB competitie 2022-2023 Klasse 3 ronde 8 Saturday 17 September 2022 +1–0=0 +18.4
KNSB competitie 2022-2023 Klasse 3 ronde 6 Saturday 17 September 2022 +1–0=0 +13.7
KNSB competitie 2022-2023 Klasse 3 ronde 5 Saturday 17 September 2022 +0–0=1 +10.3
KNSB competitie 2022-2023 Klasse 3 ronde 4 Saturday 17 September 2022 +1–0=0 +18.5

Rating History

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Peak Ratings

Classic 1898 Feb. 1, 2026
Rapid 1870 March 1, 2026
Blitz 1870 March 1, 2026

Games

Wins 12
Losses 6
Draws 14
Win Rate 38%

Performance by Color

Color Wins Draws Losses Win Rate
White 8 7 0 53%
Black 4 7 6 24%

Recent Matches

Oskam, D. (Dejen) (1895) Tuesday 30 December 2025 DRAW +0.9
Hagen, M. (Maurits) (1755) Monday 29 December 2025 WIN +8.6
Hagen, S.C. (Carlijn) (1830) Sunday 28 December 2025 DRAW -1.4
Dijkstra, T.C. (Theo) (1793) Saturday 27 December 2025 WIN +9.8
Spaans, L. (Leonie) (1802) Friday 26 December 2025 WIN +10.2
Voermans, A.J.H. (Adri) (1603) Saturday 30 December 2023 DRAW -6.1
Houtsma, J. (Jouke) (1741) Friday 29 December 2023 WIN +10.8
Elferink, L.A. (Leon) (1772) Thursday 28 December 2023 DRAW -0.3
Lee, J.B. (Jungbin) (1782) Wednesday 27 December 2023 DRAW -0.3
Said, O.A. (Omar) (1801) Tuesday 26 December 2023 LOSS -12.2
Zobel, Christian (1715) Saturday 29 July 2023 LOSS -16.9
Brunner, Alexander (1683) Friday 28 July 2023 WIN +7.2
Tulchynsky, David (1682) Thursday 27 July 2023 DRAW -5.4
Witter, Jannes (1688) Wednesday 26 July 2023 DRAW -5.2
Stara, Zuzana (1644) Tuesday 25 July 2023 LOSS -19.0
Sochor, Vaclav (1570) Monday 24 July 2023 WIN +4.2
Friedland, Manfred (1668) Sunday 23 July 2023 LOSS -18.3
Ulcak, Michael (1722) Sunday 23 July 2023 DRAW -4.1
Sikorova, Jana (1582) Saturday 22 July 2023 WIN +4.5
Riksten, J.T. (John) (1956) Saturday 22 April 2023 DRAW +4.5