KNSB FIDE
RB

Ruurd de Boer

Rated since January 2023

1804 Classic
1815 Rapid
1815 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
ZWINKELS, W.S. (WIM) 1874
12654 LeiSB regionale competitie 25-26 1e klasse december · Friday 19 December 2025
MAN DE, B. (BURG) 1869
10472 Tata Steel Chess Tournament 2026 Dagvierkampen · Wednesday 21 January 2026
TERWEL, D.D. (DIEDERICK) 1861
13248 KNSB competitie 2025-2026 Klasse 5 ronde 7 · Saturday 7 March 2026
BERG VAN DEN, H.J.M. (DICK) 1844
12429 LeiSB regionale competitie 25-26 1e klasse november · Thursday 20 November 2025
VERSCHOOR, M. (MARCEL) 1799
12850 LeiSB regionale competitie 25-26 1e klasse januari 2026 · Thursday 15 January 2026
Worst losses
VLEUTEN VAN, R.E. (RONALD) 1733
11810 Piet Houwelingtoernooi Groep A · Wednesday 10 December 2025
HILARIUS, S. (SANDER) 1826
11810 Piet Houwelingtoernooi Groep A · Sunday 8 February 2026
VERHEESEN, R. (RENE) 1870
12410 KNSB competitie 2025-2026 Klasse 5 Ronde 3 · Saturday 22 November 2025
KAZI, Z. (ZIDAN) 1888
13120 85e Daniel Noteboomtoernooi Groep B · Sunday 22 February 2026
MAC LEAN, H.M. (MURDOCH) 1933
13120 85e Daniel Noteboomtoernooi Groep B · Saturday 21 February 2026
85e Daniel Noteboomtoernooi Groep B Friday 20 February 2026 +2–3=1 -4.6
Tata Steel Chess Tournament 2026 Dagvierkampen Friday 16 January 2026 +2–1=0 +26.7
Piet Houwelingtoernooi Groep A ronde 6 en 7 Thursday 13 November 2025 +0–1=0 -6.9
Piet Houwelingtoernooi Groep A Thursday 13 November 2025 +0–3=0 -33.9
LeiSB regionale competitie 25-26 1e klasse april Wednesday 1 October 2025 +0–0=1 -4.4
LeiSB regionale competitie 25-26 1e klasse januari 2026 Wednesday 1 October 2025 +1–0=0 +12.3
LeiSB regionale competitie 25-26 1e klasse december Wednesday 1 October 2025 +1–0=0 +15.7
LeiSB regionale competitie 25-26 1e klasse november Wednesday 1 October 2025 +1–0=0 +14.9
LeiSB regionale competitie 25-26 1e klasse oktober Wednesday 1 October 2025 +0–0=1 +4.2
KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +0–1=0 -6.1
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +1–0=0 +14.4
KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +1–0=0 +7.9
KNSB competitie 2025-2026 Klasse 5 Ronde 3 Saturday 20 September 2025 +0–1=0 -9.3
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +0–0=1 +0.1
KNSB competitie 2025-2026 Klasse 5 ronde 1 Saturday 20 September 2025 +0–0=1 +2.8
Piet Houwelingtoernooi 2024-2025 Groep A ronde 7 (ontbrak) Thursday 7 November 2024 +0–1=0 -4.4
Piet Houwelingtoernooi 2024-2025 Groep A ronde 5-7 Thursday 7 November 2024 +1–0=0 +12.1

Rating History

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Peak Ratings

Classic 1880 May 1, 2024
Rapid 1815 May 1, 2026
Blitz 1815 May 1, 2026

Games

Wins 10
Losses 11
Draws 5
Win Rate 38%

Performance by Color

Color Wins Draws Losses Win Rate
White 5 2 5 42%
Black 5 3 6 36%

Recent Matches

Brandt, B. (Benjamin) (1981) Thursday 7 May 2026 LOSS -6.9
D'Hooghe, S. (Sjaak) (1684) Thursday 23 April 2026 DRAW -4.4
Dekker, C.C. (Casper) (2005) Saturday 28 March 2026 LOSS -6.1
Terwel, D.D. (Diederick) (1861) Saturday 7 March 2026 WIN +14.4
Kazi, Z. (Zidan) (1888) Sunday 22 February 2026 LOSS -5.5
Sivók, V. (Vince) (1711) Sunday 22 February 2026 WIN +8.0
Veldhuyzen, Y. (Ywein) (1904) Saturday 21 February 2026 DRAW +2.0
Mac Lean, H.M. (Murdoch) (1933) Saturday 21 February 2026 LOSS -9.5
Baldé, E.O.D. (Esko) (1754) Friday 20 February 2026 WIN +9.4
Buijsman, D. (Delano) (1948) Friday 20 February 2026 LOSS -9.0
Hilarius, S. (Sander) (1826) Sunday 8 February 2026 LOSS -13.2
Man de, B. (Burg) (1869) Wednesday 21 January 2026 WIN +14.7
Calverley, Jonathan Tuesday 20 January 2026 LOSS
Oude de, H. (Harm) (1791) Monday 19 January 2026 WIN +12.0
Verschoor, M. (Marcel) (1799) Thursday 15 January 2026 WIN +12.3
Zwinkels, W.S. (Wim) (1874) Friday 19 December 2025 WIN +15.7
Verbaken, I. (Ilja) (1646) Saturday 13 December 2025 WIN +7.9
Vleuten van, R.E. (Ronald) (1733) Wednesday 10 December 2025 LOSS -14.2
Verheesen, R. (Rene) (1870) Saturday 22 November 2025 LOSS -9.3
Berg van den, H.J.M. (Dick) (1844) Thursday 20 November 2025 WIN +14.9