KNSB FIDE
GR

Gerrit Roos

Rated since January 2023

1797 Classic
1750 Rapid
1750 Blitz

RIVALRY

Nemesis
Buysman, J.H.M. (Co)
Games: 6 · Win rate: 67%
Kryptonite
Spil, A.L. (Bert)
Games: 5 · Win rate: 0%
Easy Target
Best de, B. (Boris)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
NOORDHOFF, E.P. (ENNO) 2009
12594 KNSB competitie 2025-2026 Klasse 5 ronde 4 · Saturday 13 December 2025
BEEMSTERBOER, A. (ANDRE) 1986
13279 NHSB-competitie 2025-2026 Klasse 1A t/m 15-03-2026 · Tuesday 10 March 2026
DIJKHUIZEN VAN, R. (ROBBERT) 1910
7051 Interne competitie Caïssa-Eenhoorn 2022-2023 T/m april · Tuesday 18 April 2023
GROOTJEN, C.J. (CEES) 1900
11890 NHSB-competitie 2025-2026 Klasse 1A t/m 26-09-2025 · Tuesday 23 September 2025
ZIEL VAN DER, R. (REMCO) 1884
13011 NHSB-competitie 2025-2026 Klasse 1A t/m 15-02-2026 · Tuesday 10 February 2026
Worst losses
GOOIJERS, R. (RICHARD) 1211
6865 NHSB-competitie 2022-2023 Klasse 3B t/m maart · Thursday 16 March 2023
BOESENKOOL, R. (ROEL) 1337
7493 Chessable Open NK 2023 Zesrondig 2 · Monday 24 July 2023
KUIN, P.J. (PETER) 1390
13170 Caïssa-Eenhoorn interne competitie 17-02-2026 t/m 17-02-2026 (090008) · Tuesday 17 February 2026
ALST VAN, J. (JORDI) 1426
12956 Caïssa-Eenhoorn interne competitie 03-02-2026 t/m 03-02-2026 (090008) · Tuesday 3 February 2026
VEEN VAN DER, W. (WILLEM) 1447
7746 Interne competitie Caïssa-Eenhoorn 2023-2024 T/m oktober · Tuesday 17 October 2023
Tata Steel Chess Tournament 2026 Dagvierkampen Friday 16 January 2026 +2–0=1 +17.4
Open NK Schaken 2025 Zesrondig 1 Tuesday 22 July 2025 +0–4=1 -33.4
Tata Steel Chess Tournament 2025 Dagvierkampen Friday 17 January 2025 +0–2=1 -30.3
Open NK Schaken 2024 Zesrondig 2 Monday 22 July 2024 +4–1=1 +24.8
Tata Steel Chess Tournament 2024 Dagvierkampen Friday 12 January 2024 +0–1=1 -10.7
Tata Steel Chess Tournament 2023 Dagvierkampen Friday 13 January 2023 +1–1=1 +7.7
52e Open Seniorentoernooi 2026 Groep 4 Monday 13 July 2026 +3–1=1 +29.3
NHSB Lenteveteranentoernooi 2026 Groep B 2026 Wednesday 4 March 2026 +5–1=1 +39.5
KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +0–1=0 -6.8
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +0–1=0 -6.1
KNSB competitie 2025-2026 Klasse 5 ronde 6 Saturday 20 September 2025 +0–0=1 +2.7
KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +1–0=0 +19.7
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +0–1=0 -8.9
KNSB competitie 2025-2026 Klasse 5 ronde 1 Saturday 20 September 2025 +0–0=1 +3.6
Caïssa-Eenhoorn interne competitie 19-05-2026 t/m 19-05-2026 (090008) Monday 1 September 2025 +0–1=0 -12.7
Caïssa-Eenhoorn interne competitie 12-05-2026 t/m 12-05-2026 (090008) Monday 1 September 2025 +1–0=0 +6.8
Caïssa-Eenhoorn interne competitie 05-05-2026 t/m 05-05-2026 (090008) Monday 1 September 2025 +1–0=0 +5.9
Caïssa-Eenhoorn interne competitie 21-04-2026 t/m 21-04-2026 (090008) Monday 1 September 2025 +1–0=0 +4.0
Caïssa-Eenhoorn interne competitie 14-04-2026 t/m 14-04-2026 (090008) Monday 1 September 2025 +0–1=0 -14.3
Caïssa-Eenhoorn interne competitie 07-04-2026 t/m 07-04-2026 (090008) Monday 1 September 2025 +0–1=0 -13.9
Caïssa-Eenhoorn interne competitie 31-03-2026 t/m 31-03-2026 (090008) Monday 1 September 2025 +0–0=1 +2.4
NHSB-competitie 2025-2026 Klasse 1A t/m 29-03-2026 Monday 1 September 2025 +0–1=0 -8.1
Caïssa-Eenhoorn interne competitie 17-03-2026 t/m 17-03-2026 (090008) Monday 1 September 2025 +1–0=0 +7.1
NHSB-competitie 2025-2026 Klasse 1A t/m 15-03-2026 Monday 1 September 2025 +1–0=0 +20.1
Caïssa-Eenhoorn interne competitie 03-03-2026 t/m 03-03-2026 (090008) Monday 1 September 2025 +1–0=0 +2.8
Caïssa-Eenhoorn interne competitie 17-02-2026 t/m 17-02-2026 (090008) Monday 1 September 2025 +0–1=0 -22.7
NHSB-competitie 2025-2026 Klasse 1A t/m 15-02-2026 Monday 1 September 2025 +1–0=0 +16.5
Caïssa-Eenhoorn interne competitie 03-02-2026 t/m 03-02-2026 (090008) Monday 1 September 2025 +0–1=0 -22.1
Caïssa-Eenhoorn interne competitie 27-01-2026 t/m 27-01-2026 (090008) Monday 1 September 2025 +0–1=0 -14.8
Caïssa-Eenhoorn interne competitie 13-01-2026 t/m 13-01-2026 (090008) Monday 1 September 2025 +0–1=0 -11.0
Caïssa-Eenhoorn interne competitie 06-01-2026 t/m 06-01-2026 (090008) Monday 1 September 2025 +1–0=0 +1.9
Caïssa-Eenhoorn interne competitie 23-12-2025 t/m 23-12-2025 (090008) Monday 1 September 2025 +0–1=0 -14.7
Caïssa-Eenhoorn interne competitie 09-12-2025 t/m 09-12-2025 (090008) Monday 1 September 2025 +0–0=1 0.0
Caïssa-Eenhoorn interne competitie 02-12-2025 t/m 02-12-2025 (090008) Monday 1 September 2025 +0–0=1 -3.5
NHSB-competitie 2025-2026 Klasse 1A t/m 30-11-2025 Monday 1 September 2025 +0–1=0 -7.2
Caïssa-Eenhoorn interne competitie 18-11-2025 t/m 18-11-2025 (090008) Monday 1 September 2025 +1–0=0 +10.1
NHSB-competitie 2025-2026 Klasse 1A t/m 16-11-2025 Monday 1 September 2025 +0–0=1 +1.1
Caïssa-Eenhoorn interne competitie 04-11-2025 t/m 04-11-2025 (090008) Monday 1 September 2025 +0–1=0 -13.8
Caïssa-Eenhoorn interne competitie 28-10-2025 t/m 28-10-2025 (090008) Monday 1 September 2025 +1–0=0
NHSB-competitie 2025-2026 Klasse 1A t/m 19-10-2025 Monday 1 September 2025 +0–1=0 -6.3
Caïssa-Eenhoorn interne competitie 07-10-2025 t/m 07-10-2025 (090008) Monday 1 September 2025 +1–0=0 +6.4
Caïssa-Eenhoorn interne competitie 30-09-2025 t/m 30-09-2025 (090008) Monday 1 September 2025 +0–1=0 -7.6
NHSB-competitie 2025-2026 Klasse 1A t/m 26-09-2025 Monday 1 September 2025 +1–0=0 +16.4
Interne competitie Caïssa-Eenhoorn 2025-2026 2025-09-09 Monday 1 September 2025 +0–1=0 -6.8
NHSB Lenteveteranenkampioenschap 2025 Groep B Wednesday 5 March 2025 +1–2=3 +9.0
KNSB competitie 2024-2025 Klasse 5 ronde 6 Saturday 21 September 2024 +0–1=0 -6.8
KNSB competitie 2024-2025 Klasse 5 ronde 5 Saturday 21 September 2024 +1–0=0 +13.5
KNSB competitie 2024-2025 Klasse 5 ronde 4 Saturday 21 September 2024 +0–1=0 -14.0
KNSB competitie 2024-2025 Klasse 5 ronde 3 Saturday 21 September 2024 +1–0=0 +12.4
KNSB competitie 2024-2025 Klasse 5 ronde 2 Saturday 21 September 2024 +0–0=1 +0.8
KNSB competitie 2024-2025 Klasse 5 ronde 1 Saturday 21 September 2024 +1–0=0 +10.6
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-05-20 Sunday 1 September 2024 +0–1=0 -13.0
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-05-13 Sunday 1 September 2024 +1–0=0 +5.0
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-05-06 Sunday 1 September 2024 +0–1=0 -15.1
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-04-15 Sunday 1 September 2024 +1–0=0 +11.2
NHSB-competitie 2024-2025 Klasse 2B t/m 13-04-2025 Sunday 1 September 2024 +0–0=1 +3.6
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-04-01 Sunday 1 September 2024 +1–0=0 +13.2
NHSB-competitie 2024-2025 Klasse 2B t/m 23-03-2025 Sunday 1 September 2024 +1–0=0 +8.4
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-03-18 Sunday 1 September 2024 +0–0=1 -3.6
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-03-11 Sunday 1 September 2024 +0–1=0 -17.3
NHSB-competitie 2024-2025 Klasse 2B t/m 26-02-2025 Sunday 1 September 2024 +0–1=0 -13.3
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-02-11 Sunday 1 September 2024 +0–1=0 -12.3
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-02-04 Sunday 1 September 2024 +0–1=0 -14.2
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-01-28 Sunday 1 September 2024 +0–1=0 -12.1
Interne competitie Caïssa-Eenhoorn 2024-2025 2025-01-14 Sunday 1 September 2024 +1–0=0 +8.1
Interne competitie Caïssa-Eenhoorn 2024-2025 2024-12-17 Sunday 1 September 2024 +0–0=1 -2.5
Interne competitie Caïssa-Eenhoorn 2024-2025 2024-12-03 Sunday 1 September 2024 +0–0=1 +0.8
Interne competitie Caïssa-Eenhoorn 2024-2025 T/m november Sunday 1 September 2024 +3–1=0 +16.6
NHSB-competitie 2024-2025 Klasse 2B t/m 28-11-2024 Sunday 1 September 2024 +1–0=0 +10.2
NHSB-competitie 2024-2025 Klasse 2B t/m 26-10-2024 Sunday 1 September 2024 +1–0=0 +12.1
Interne competitie Caïssa-Eenhoorn 2024-2025 T/m oktober Sunday 1 September 2024 +0–1=0 -12.5
Interne competitie Caïssa-Eenhoorn 2024-2025 T/m september Sunday 1 September 2024 +1–1=1 -2.8
NHSB lente-veteranentoernooi 2024 Groep A Wednesday 28 February 2024 +3–3=3 +24.7
KNSB competitie 2023-2024 Klasse 5 ronde 7 Saturday 16 September 2023 +1–0=0 +7.1
KNSB competitie 2023-2024 Klasse 5 ronde 6 Saturday 16 September 2023 +1–0=0 +13.2
KNSB competitie 2023-2024 Klasse 5 ronde 5 Saturday 16 September 2023 +0–1=0 -7.4
KNSB competitie 2023-2024 Klasse 5 ronde 4 Saturday 16 September 2023 +1–0=0 +12.1
KNSB competitie 2023-2024 Klasse 5 ronde 2 Saturday 16 September 2023 +1–0=0 +6.8
KNSB competitie 2023-2024 Klasse 5 ronde 1 Saturday 16 September 2023 +1–0=0 +18.2
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m mei Friday 1 September 2023 +1–1=1 -5.6
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m april Friday 1 September 2023 +1–2=0 -4.6
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m maart Friday 1 September 2023 +2–3=0 -8.1
NHSB-competitie 2023-2024 Klasse 2B t/m 26-03-2024 Friday 1 September 2023 +0–0=1 +0.1
NHSB-competitie 2023-2024 Klasse 2B t/m 23-02-2024 Friday 1 September 2023 +0–0=1 -5.8
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m februari Friday 1 September 2023 +0–0=1 +3.6
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m januari Friday 1 September 2023 +1–1=0 +10.2
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m december Friday 1 September 2023 +1–0=0 +4.7
NHSB-competitie 2023-2024 Klasse 2B t/m 26-12-2023 Friday 1 September 2023 +0–1=0 -7.8
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m november Friday 1 September 2023 +2–2=0 +2.7
NHSB-competitie 2023-2024 Klasse 2B t/m november Friday 1 September 2023 +0–1=0 -8.4
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m oktober Friday 1 September 2023 +2–1=0 -15.0
NHSB-competitie 2023-2024 Klasse 2B t/m oktober Friday 1 September 2023 +0–0=1 +0.0
Interne competitie Caïssa-Eenhoorn 2023-2024 T/m september Friday 1 September 2023 +1–0=1 +23.9
Chessable Open NK 2023 Zesrondig 2 Monday 24 July 2023 +3–1=2 -39.8
Lenteveteranentoernooi NHSB Groep B Wednesday 1 March 2023 +4–2=1 +0.4
Interne competitie Caïssa-Eenhoorn 2022-2023 T/m mei Tuesday 20 September 2022 +1–2=0 +3.3
Interne competitie Caïssa-Eenhoorn 2022-2023 T/m april Tuesday 20 September 2022 +3–1=0 +38.7
Interne competitie Caïssa-Eenhoorn 2022-2023 T/m maart Tuesday 20 September 2022 +1–0=2 +12.2
Interne competitie Caïssa-Eenhoorn 2022-2023 T/m februari Tuesday 20 September 2022 +2–1=1 -1.0
Interne competitie Caïssa-Eenhoorn 2022-2023 T/m januari Tuesday 20 September 2022 +0–2=0 -14.5
Interne competitie Caïssa-Eenhoorn 2022-2023 t/m december Tuesday 20 September 2022 +2–0=0 +25.8
NHSB-competitie 2022-2023 Klasse 3B t/m maart Thursday 1 September 2022 +0–1=0 -23.4
NHSB-competitie 2022-2023 Klasse 3B t/m februari Thursday 1 September 2022 +1–0=0 +4.3
NHSB-competitie 2022-2023 Klasse 3B t/m december Thursday 1 September 2022 +1–0=0 +10.1

Team Competition

Current team
Caissa-Eenhoorn 3
Klasse 5H · 2025-2026 · 6 games
Past teams
Caissa-Eenhoorn 3
Klasse 5G · 2024-2025
Caissa-Eenhoorn 3
Klasse 5F · 2023-2024
Caissa-Eenhoorn 2
Klasse 3D · 2021-2022

Rating History

Loading rating history...

Peak Ratings

Classic 1883 Jan. 1, 2025
Rapid 1750 May 1, 2026
Blitz 1750 May 1, 2026

Games

Wins 80
Losses 68
Draws 38
Win Rate 43%

Performance by Color

Color Wins Draws Losses Win Rate
White 34 20 33 39%
Black 46 18 35 46%

Recent Matches

Brachten, R.H.B. (Ron) (1768) Friday 17 July 2026 WIN +12.5
Schol, J. (Jan) (1779) Thursday 16 July 2026 LOSS -12.1
Bremen van, A.J. (Hans) (1804) Wednesday 15 July 2026 WIN +13.8
Lange de, H.B.I. (Rik) (1809) Tuesday 14 July 2026 DRAW +1.4
Visschedijk, T.H. (Theo) (1803) Monday 13 July 2026 WIN +13.7
Bouman, L.L. (Lionel) (1721) Tuesday 19 May 2026 LOSS -12.7
Best de, H. (Harry) (1555) Tuesday 12 May 2026 WIN +6.8
Veen van der, W. (Willem) (1524) Tuesday 5 May 2026 WIN +5.9
Laan, A.A. (Aad) (1692) Wednesday 22 April 2026 WIN +10.5
Guney, M. (Mustafa) (1465) Tuesday 21 April 2026 WIN +4.0
Meiden van der, H. (Henk) (1766) Wednesday 15 April 2026 WIN +13.1
Zyat, J. (Jamal) (1697) Tuesday 14 April 2026 LOSS -14.3
Rentenaar, J. (Jan) (1701) Wednesday 8 April 2026 WIN +10.8
Groot, G.A. (Gerard) (1710) Tuesday 7 April 2026 LOSS -13.9
Schoor, C.W.J. (Carl) (1739) Wednesday 1 April 2026 WIN +12.1
Lankveld van, K.J.A. (Koen) (1811) Tuesday 31 March 2026 DRAW +2.4
Grondhout, T. (Tijmen) (1913) Saturday 28 March 2026 LOSS -6.8
Smit, W. (Wim) (1873) Friday 27 March 2026 LOSS -8.1
Buysman, J.H.M. (Co) (1711) Wednesday 25 March 2026 LOSS -13.6
Tsymbal, M.T. (Maksym) (1577) Tuesday 17 March 2026 WIN +7.1