KNSB FIDE
SR

Sjoerd van Roon

Rated since June 2015

2308 Classical
2246 Rapid
2196 Blitz

The good & the bad

Best wins
FERREIRA, JORGE VITERBO (GM) 2435
Open Dutch Rapid Championship 2026 · 2026-05-02
ELGERSMA, ONNO (FM) 2366
Chessfestival Groningen 2025 Open A · 2025-12-21
LEVIN, FELIX (GM) 2332
Open Dutch Rapid Championship 2026 · 2026-05-02
WILLEMZE, T. (THOMAS) (IM) 2331
Dutch Team Competition - Meesterklasse Round 7 · 2026-02-07
VOS, TJARK 2201
51e Open Kampioenschap van Utrecht - Groep A · 2026-05-15
Worst losses
BOSBOOM, ARDIN 2154
51e Open Kampioenschap van Utrecht - Groep A · 2026-05-15
KERIGAN, D. (DEMRE) (IM) 2350
Dutch Team Competition - Meesterklasse Round 9 · 2026-04-11
RUZHANSKY, ELIAS (FM) 2432
Chessfestival Groningen 2025 Open A · 2025-12-21
PRRANEETH, VUPPALA (CM) 2469
Chessfestival Groningen 2025 Open A · 2025-12-21
BEERDSEN, THOMAS (GM) 2488
Open Dutch Rapid Championship 2026 · 2026-05-02

FIDE Tournaments

51e Open Kampioenschap van Utrecht - Groep A 2026-05-15 +4–1=1 +4.6
Open Dutch Rapid Championship 2026 2026-05-02 +7–1=1 +41.2
Dutch Team Competition - Meesterklasse Round 9 2026-04-11 +0–1=0 -9.0
Dutch Team Competition - Meesterklasse Round 8 2026-03-07 +1–0=0 +6.2
Dutch Team Competition - Meesterklasse Round 6 2026-03-28 +0–0=1 +2.4
Dutch Team Competition - Meesterklasse Round 7 2026-02-07 +1–0=0 +11.0
Chessfestival Groningen 2025 Open A 2025-12-21 +3–2=4 +18.4
Open NK Rapid Groep A Saturday 2 May 2026 +7–1=1 +32.8
Chessfestival Groningen Open A Sunday 21 December 2025 +3–2=4 +12.6
40th European Club Cup (open) Sunday 19 October 2025 +3–3=1 -5.5
KNSB competitie 2025-2026 Meesterklasse ronde 9 Saturday 20 September 2025 +0–1=0 -6.3
KNSB competitie 2025-2026 Meesterklasse ronde 6 Saturday 20 September 2025 +0–0=1 +1.6
KNSB competitie 2025-2026 Meesterklasse ronde 8 Saturday 20 September 2025 +1–0=0 +5.0
KNSB competitie 2025-2026 Meesterklasse ronde 7 Saturday 20 September 2025 +1–0=0 +8.1
KNSB competitie 2025-2026 Meesterklasse ronde 5 Saturday 20 September 2025 +0–1=0 -6.9
KNSB competitie 2025-2026 Meesterklasse ronde 4 Saturday 20 September 2025 +1–0=0 +7.9
KNSB competitie 2025-2026 Meesterklasse ronde 3 Saturday 20 September 2025 +0–1=0 -4.5
KNSB competitie 2025-2026 Meesterklasse ronde 2 Saturday 20 September 2025 +0–0=1 -1.5
KNSB competitie 2025-2026 Meesterklasse ronde 1 Saturday 20 September 2025 +1–0=0 +6.6
Open NK Rapid 2025 Open NK Rapid Saturday 3 May 2025 +6–3=0 -0.8
Johan van Mil Toernooi JvM Sunday 27 April 2025 +12–6=1 -23.5
Chess Festival Groningen Open A Saturday 21 December 2024 +3–4=2 -26.1
KNSB competitie 2024-2025 Meesterklasse ronde 9 Saturday 21 September 2024 +1–0=0 +10.3
KNSB competitie 2024-2025 Meesterklasse ronde 8 Saturday 21 September 2024 +1–0=0 +7.2
KNSB competitie 2024-2025 Meesterklasse ronde 7 Saturday 21 September 2024 +0–1=0 -8.4
KNSB competitie 2024-2025 Meesterklasse ronde 6 Saturday 21 September 2024 +0–1=0 -5.5
KNSB competitie 2024-2025 Meesterklasse ronde 5 Saturday 21 September 2024 +1–0=0 +8.7
KNSB competitie 2024-2025 Meesterklasse ronde 4 Saturday 21 September 2024 +1–0=0 +10.3
KNSB competitie 2024-2025 Meesterklasse ronde 3 Saturday 21 September 2024 +0–1=0 -4.5
KNSB competitie 2024-2025 Meesterklasse ronde 2 Saturday 21 September 2024 +0–1=0 -9.4
KNSB competitie 2024-2025 Meesterklasse ronde 1 Saturday 21 September 2024 +1–0=0 +5.0
Amsterdam Science Park Chess Tournament Groep A Saturday 13 July 2024 +5–2=2 +4.9
Tata Steel Chess Tournament 2024 Tienkampen Friday 12 January 2024 +3–3=3 -0.3
13e WLC Weekendtoernooi Groep A Friday 5 May 2023 +0–2=1 -36.1

Rating History

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Peak Ratings

Classical 2323
Rapid 2258
Blitz 2215

Games

Wins 16
Losses 5
Draws 7
Win Rate 57%

Performance by Color

Color Wins Draws Losses Win Rate
White 9 3 4 56%
Black 7 4 1 58%

All-time Games (from rating history)

Classical 383
Rapid 42
Blitz 177

Recent Matches

Den Heijer, Rolinde (2068) 2026-05-15 WIN +4.2
Jakhari, Ansh (2144) 2026-05-15 WIN +5.8
Bosboom, Ardin (2154) 2026-05-15 LOSS -14.0
Kleibeuker, Mika (2157) 2026-05-15 DRAW -4.0
Van Der Plas, Rob (2130) 2026-05-15 WIN +5.4
Vos, Tjark (2201) 2026-05-15 WIN +7.2
Aravindhan, Aadvik 2026-05-02 WIN +1.6
Lenting, Roan (1838) 2026-05-02 WIN +2.0
Neus, Frans (1937) 2026-05-02 WIN +3.4
GM Beerdsen, Thomas (2488) 2026-05-02 LOSS -3.2
Winter, Sven (1929) 2026-05-02 WIN +3.4
Gergin, Isafara (1836) 2026-05-02 WIN +2.0
GM Levin, Felix (2332) 2026-05-02 WIN +13.4
GM Ferreira, Jorge Viterbo (2435) 2026-05-02 WIN +15.8
FM Schoorl, Rob (2307) 2026-05-02 DRAW +2.8
IM Kerigan, D. (demre) (2350) 2026-04-11 LOSS -9.0
Zecha, O.a. (oscar) (2159) 2026-03-07 WIN +6.2
FM Grutter, T.j. (tim) (2388) 2026-03-28 DRAW +2.4
IM Willemze, T. (thomas) (2331) 2026-02-07 WIN +11.0
Lopes, Samuel (2077) 2025-12-21 WIN +4.6
FM Ruzhansky, Elias (2432) 2025-12-21 LOSS -6.0
Shivika, Rohilla (2048) 2025-12-21 WIN +4.0
IM Babazada, Khazar (2507) 2025-12-21 DRAW +5.6
FM Elgersma, Onno (2366) 2025-12-21 WIN +12.2
IM Dhulipalla, Bala Chandra Prasad (2430) 2025-12-21 DRAW +4.0
CM Prraneeth, Vuppala (2469) 2025-12-21 LOSS -5.2
CM Filindash, Nikita (2210) 2025-12-21 DRAW -2.0
FM Van Foreest, Machteld (2328) 2025-12-21 DRAW +1.2