KNSB FIDE
HG

Herman Grooten

Rated since April 2003

2177 Classical
2184 Rapid
2142 Blitz

The good & the bad

Best wins
MARIS, IVO (FM) 2370
Chessfestival Groningen 2025 Open A · 2025-12-21
KURT, SASCHA (FM) 2325
16e WLC Weekendtoernooi: Groep A · 2026-05-08
JANSE, JAN JAAP 2218
ASV Voorjaarstoernooi 2026 · 2026-03-21
DE WIT, EVAN 2114
Chessfestival Groningen 2025 Open A · 2025-12-21
VAN COPPENOLLE, KURT 2099
Tapijtgigant Open ASK 2026 - Group A · 2026-04-04
Worst losses
KOPPENENS, OSCAR 1846
Open Dutch Rapid Championship 2026 · 2026-05-02
WIERENGA, LUUK 1877
Open Dordrecht rapidtoernooi 2026 · 2026-02-28
BRIENEN, JACOB 1903
Johan van Mil Toernooi 2026 · 2026-04-26
GEBOERS, JIMMY 1905
Johan van Mil Toernooi 2026 · 2026-04-26
THIJSSEN, FREEK 1913
Open Dutch Rapid Championship 2026 · 2026-05-02

FIDE Tournaments

16e WLC Weekendtoernooi: Groep A 2026-05-08 +3–2=0 +0.8
51e Open Kampioenschap van Utrecht - Groep A 2026-05-15 +3–2=1 +0.9
Open Dutch Rapid Championship 2026 2026-05-02 +5–3=0 -13.1
Tapijtgigant Open ASK 2026 - Group A 2026-04-04 +4–2=0 +0.3
Dutch Team Competition - Meesterklasse Round 9 2026-04-11 +0–1=0 -4.2
Johan van Mil Toernooi 2026 2026-04-26 +10–8=1 -71.6
Dutch Team Competition - Meesterklasse Round 8 2026-03-07 +0–1=0 -1.7
Dutch Team Competition - Meesterklasse Round 6 2026-03-28 +0–1=0 -1.1
Open Dordrecht rapidtoernooi 2026 2026-02-28 +5–3=0 -9.9
ASV Voorjaarstoernooi 2026 2026-03-21 +4–2=1 +1.3
Dutch Team Competition - Meesterklasse Round 7 2026-02-07 +0–1=0 -2.5
Chessfestival Groningen 2025 Open A 2025-12-21 +3–4=2 +3.7
Open NK Rapid Groep A Saturday 2 May 2026 +6–3=0 -11.4
TAPIJTGIGANT OPEN ASK 2026 Groep A Saturday 4 April 2026 +4–2=0 +2.4
Chessfestival Groningen Open A Sunday 21 December 2025 +3–4=2 +7.0
36ste Open van Leuven - Reeks A Saturday 8 November 2025 +4–3=0 +1.3
Hoogeveen Schaaktoernooi Open Saturday 18 October 2025 +5–4=0 -21.3
KNSB competitie 2025-2026 Meesterklasse ronde 9 Saturday 20 September 2025 +0–1=0 -8.9
KNSB competitie 2025-2026 Meesterklasse ronde 6 Saturday 20 September 2025 +0–1=0 -2.5
KNSB competitie 2025-2026 Meesterklasse ronde 8 Saturday 20 September 2025 +0–1=0 -3.6
KNSB competitie 2025-2026 Meesterklasse ronde 7 Saturday 20 September 2025 +0–1=0 -5.7
KNSB competitie 2025-2026 Meesterklasse ronde 5 Saturday 20 September 2025 +1–0=0 +10.4
KNSB competitie 2025-2026 Meesterklasse ronde 4 Saturday 20 September 2025 +1–0=0 +10.0
KNSB competitie 2025-2026 Meesterklasse ronde 3 Saturday 20 September 2025 +0–1=0 -6.7
KNSB competitie 2025-2026 Meesterklasse ronde 2 Saturday 20 September 2025 +0–0=1 +1.3
KNSB competitie 2025-2026 Meesterklasse ronde 1 Saturday 20 September 2025 +0–1=0 -6.4
NK Snelschaken 2025 Groep A Saturday 13 September 2025 +12–10=3 +34.2
10e Goirle Weekend Kampioenschap Groep A Friday 22 August 2025 +3–2=0 +4.6
HSG Open 2025 Groep A Friday 20 June 2025 +4–1=0 +27.5
17e BPB Limburg Open 2025 Groep A Friday 6 June 2025 +2–2=2 -10.5
50e Open Kampioenschap van Utrecht Groep A Friday 30 May 2025 +4–2=0 +8.6
15e WLC Weekendtoernooi Groep A Friday 16 May 2025 +3–2=0 +8.0
Open NK Rapid 2025 Open NK Rapid Saturday 3 May 2025 +5–3=1 -10.7
TAPIJTGIGANT OPEN ASK 2025 Groep A Saturday 19 April 2025 +5–1=0 +66.5
Tata Steel Chess Tournament 2025 Tienkampen Friday 17 January 2025 +1–3=4 -32.0
2025 Chess.com Botwinnik Rapid toernooi Groep A Saturday 4 January 2025 +4–3=0 +4.6
Chess Festival Groningen Open A Saturday 21 December 2024 +3–5=1 +1.7
Hoogeveen Schaaktoernooi Open Groep Saturday 26 October 2024 +2–4=3 -48.9
NK-Snelschaken 2024 Saturday 14 September 2024 +15–9=2 +55.6
14e WLC Weekendtoernooi Groep A Friday 31 May 2024 +2–1=2 -10.0
16e BPB Limburg Open 2024 Groep A Friday 17 May 2024 +3–1=3 +13.0
Weekendtoernooi Groninger Combinatie GC weekendtoernooi 2024 Thursday 9 May 2024 +5–2=0 -16.0
Chess Festival Groningen Open A Thursday 21 December 2023 +3–6=0 -45.4
13e WLC Weekendtoernooi Groep A Friday 5 May 2023 +3–2=0 -18.4

Rating History

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Peak Ratings

Classical 2408
Rapid 2243
Blitz 2286

Games

Wins 37
Losses 30
Draws 5
Win Rate 51%

Performance by Color

Color Wins Draws Losses Win Rate
White 18 3 14 51%
Black 19 2 16 51%

All-time Games (from rating history)

Classical 815
Rapid 55
Blitz 103

Recent Matches

Issaad, Pascal (1948) 2026-05-08 WIN +2.1
FM Kurt, Sascha (2325) 2026-05-08 WIN +7.0
FM Ritzerveld, Noah (2212) 2026-05-08 LOSS -4.5
Haitjema, Jarich (2044) 2026-05-08 LOSS -6.8
FM Becx, C Sar (2027) 2026-05-08 WIN +3.0
Van Ree, Thailo (1982) 2026-05-15 LOSS -7.5
FM Becx, Cesar (2027) 2026-05-15 WIN +3.0
Taams, Lisanne (1998) 2026-05-15 WIN +2.7
IM Ondersteijn, Niels (2382) 2026-05-15 DRAW +2.7
FM Van Meegen, Ruud (2303) 2026-05-15 LOSS -3.3
De Zoeten, Cato (2051) 2026-05-15 WIN +3.3
Kshirsagar, Parth 2026-05-02 WIN +0.8
Veenstra, Frits (1839) 2026-05-02 WIN +1.0
Uitermark, Imre (1910) 2026-05-02 WIN +1.6
GM Leenhouts, Koen (2443) 2026-05-02 LOSS -1.9
Thijssen, Freek (1913) 2026-05-02 LOSS -8.4
Koppenens, Oscar (1846) 2026-05-02 LOSS -8.9
Van Baaren, Joris 2026-05-02 WIN +0.8
Bondarchuk, Vadim (1946) 2026-05-02 WIN +1.9
Baarslag, Ed (2019) 2026-04-04 LOSS -7.1
Lopes, Samuel (2031) 2026-04-04 WIN +3.0
Kalisvaart, Peter (2079) 2026-04-04 WIN +3.6
Van Coppenolle, Kurt (2099) 2026-04-04 WIN +3.9
Kamphuis, Jasper (2086) 2026-04-04 LOSS -6.3
Wilming, Auke (2043) 2026-04-04 WIN +3.2
FM Hommerson, P. (paul) (2236) 2026-04-11 LOSS -4.2
Franx, Jan Paul 2026-04-26 WIN +1.6
Geboers, Jimmy (1905) 2026-04-26 LOSS -17.2
Messaoudi, Nino (1874) 2026-04-26 DRAW -7.6
Thodam, Malte (1838) 2026-04-26 WIN +1.8
Van Beek, Angel (1896) 2026-04-26 WIN +2.6
Brienen, Jacob (1903) 2026-04-26 LOSS -17.2
De Witte, Sjoerd (1832) 2026-04-26 WIN +1.8
Smeets, Bent (1842) 2026-04-26 WIN +2.0
Blok, Michiel (2064) 2026-04-26 WIN +6.0
GM Beerdsen, Thomas (2559) 2026-04-26 LOSS -2.2
Cayonlu, Arda (1899) 2026-04-26 WIN +2.8
FM Schoorl, Rob (2344) 2026-04-26 LOSS -6.4
Lambregts, Frank (1922) 2026-04-26 LOSS -17.0
Backiel, Robert (1824) 2026-04-26 WIN +1.8
Bruls, Sven (1817) 2026-04-26 WIN +1.6
FM Labruyere, Roger (2223) 2026-04-26 LOSS -9.8
Naalden, Marc (1943) 2026-04-26 WIN +3.4
CM Korchynskyi, Mykola (2402) 2026-04-26 LOSS -5.2
Verhoeven, Robin (2048) 2026-04-26 LOSS -14.4
IM Kuipers, S.c. (stefan) (2453) 2026-03-07 LOSS -1.7
GM Vrolijk, L.n. (liam) (2533) 2026-03-28 LOSS -1.1
Diab Diaz, Ahmad (1840) 2026-02-28 WIN +1.0
GM Hamitevici, Vladimir (2379) 2026-02-28 LOSS -2.7
Wierenga, Luuk (1877) 2026-02-28 LOSS -8.8