KNSB FIDE
SO

Sjaak Oosterlaken

Rated since February 2013

1847 Classical
1759 Blitz

RIVALRY

Nemesis
Roebers, Jan
Games: 4 · Win rate: 0%

The good & the bad

Best wins
VAN PINXTEREN, GERARD 1876
Tata Steel Chess 2026 - Tienkampen · 2026-01-23
DE LOUW, PETER 1861
Tata Steel Chess 2026 - Tienkampen · 2026-01-23
MUTTA, S. (SEVYA SONIT) 1734
Dutch Team Competition - klasse 6 Round 6 · 2026-02-07
STAM, MICK 1601
NK Snelschaak voor Clubteams 2025 · 2026-03-29
Worst losses
STAM, MICK 1601
NK Snelschaak voor Clubteams 2025 · 2026-03-29
WAGENAAR, HARM THEO 1837
Tata Steel Chess 2026 - Tienkampen · 2026-01-23
ROEL, W. (WYTZE) 1893
Dutch Team Competition - klasse 6 Round 5 · 2026-03-28
PILON, JEFFREY 1978
NK Snelschaak voor Clubteams 2025 · 2026-03-29
PILON, JEFFREY 1978
NK Snelschaak voor Clubteams 2025 · 2026-03-29

FIDE Tournaments

Dutch Team Competition - klasse 6 Round 7 2026-03-07 +0–0=1 -5.0
Dutch Team Competition - klasse 6 Round 5 2026-03-28 +0–1=0 -9.2
NK Snelschaak voor Clubteams 2025 2026-03-29 +1–7=0 -34.0
Tata Steel Chess 2026 - Tienkampen 2026-01-23 +2–1=6 +8.4
Dutch Team Competition - klasse 6 Round 6 2026-02-07 +1–0=0 +7.0
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +2–1=6 +22.3

Rating History

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Peak Ratings

Classical 1914
Blitz 1877

Games

Wins 4
Losses 9
Draws 7
Win Rate 20%

Performance by Color

Color Wins Draws Losses Win Rate
White 1 3 6 10%
Black 3 4 3 30%

All-time Games (from rating history)

Classical 66
Blitz 22

Recent Matches

Hoogerwaard, S. (samantha) (1668) 2026-03-07 DRAW -5.0
Roel, W. (wytze) (1893) 2026-03-28 LOSS -9.2
FM Roebers, Jan (2069) 2026-03-29 LOSS -3.4
FM Roebers, Jan (2069) 2026-03-29 LOSS -3.4
FM Roebers, Jan (2069) 2026-03-29 LOSS -3.4
FM Roebers, Jan (2069) 2026-03-29 LOSS -3.4
Stam, Mick (1601) 2026-03-29 LOSS -15.0
Pilon, Jeffrey (1978) 2026-03-29 LOSS -5.2
Stam, Mick (1601) 2026-03-29 WIN +5.0
Pilon, Jeffrey (1978) 2026-03-29 LOSS -5.2
Peelen, Charles (1819) 2026-01-23 DRAW -0.8
Pelt, Hans (1751) 2026-01-23 DRAW -2.6
Kubbenga, Michael (1850) 2026-01-23 DRAW +0.2
Romano Tuncel, Erez (1897) 2026-01-23 DRAW +1.4
Van Pinxteren, Gerard (1876) 2026-01-23 WIN +10.8
De Louw, Peter (1861) 2026-01-23 WIN +10.4
Devaux, Nicolas (1830) 2026-01-23 DRAW -0.4
Wagenaar, Harm Theo (1837) 2026-01-23 LOSS -10.2
Toby, Almer (1830) 2026-01-23 DRAW -0.4
Mutta, S. (sevya Sonit) (1734) 2026-02-07 WIN +7.0