KNSB FIDE
RB

Roelof Berkepeis

Rated since January 2023

1839 Classic
1868 Rapid
1793 Blitz

RIVALRY

Nemesis
Postmus, G. (Geert)
Games: 3 · Win rate: 33%
Kryptonite
Grouve, W. (Wouter)
Games: 3 · Win rate: 0%

The good & the bad

Best wins
HAAS DE, S. (SIMON) 1950
12409 KNSB competitie 2025-2026 Klasse 4 Ronde 4 · Saturday 22 November 2025
SCHEPER, T. (TOM) 1877
14143 S.V. Park Stokhorst interne competitie 11-05-2026 t/m 22-06-2026 (03… · Monday 15 June 2026
MOLEN VAN DER, J. (JARICH) 1859
11593 S.V. Park Stokhorst interne competitie 24-03-2025 t/m 23-06-2025 (03… · Monday 7 April 2025
BOERRIGTER, S.H.W. (STAN) 1855
14143 S.V. Park Stokhorst interne competitie 11-05-2026 t/m 22-06-2026 (03… · Monday 18 May 2026
WERFF VAN DER, R. (RIENK) 1847
11593 S.V. Park Stokhorst interne competitie 24-03-2025 t/m 23-06-2025 (03… · Monday 24 March 2025
Worst losses
PEETERS, S.R.M. (SJOERD) 1646
13546 S.V. Park Stokhorst interne competitie 15-12-2025 t/m 13-04-2026 (03… · Monday 16 February 2026
WOLF DE, R. (RINKE) 1684
12356 S.V. Park Stokhorst interne competitie 08-09-2025 t/m 08-12-2025 (03… · Monday 1 December 2025
BURGERS, M. (MARK) 1703
13437 SBO Viertallencompetitie 2025/2026 Lijst April · Tuesday 24 March 2026
GROENEWOUDT, G.H. (GERHARD) 1731
11593 S.V. Park Stokhorst interne competitie 24-03-2025 t/m 23-06-2025 (03… · Monday 23 June 2025
JANSEN, H.J. (HENRI) 1791
12593 KNSB competitie 2025-2026 Klasse 4 ronde 5 · Saturday 13 December 2025
No FIDE-rated tournaments found.
SBO Viertallencompetitie 2025/2026 Lijst April Wednesday 1 October 2025 +1–1=0 -3.0
SBO Viertallencompetitie 2025/2026 Ronde 1 (deels A), Ronde 2 (B-G) Wednesday 1 October 2025 +1–0=0 +8.5
KNSB competitie 2025-2026 Klasse 4 ronde 9 Saturday 20 September 2025 +0–1=0 -4.4
KNSB competitie 2025-2026 Klasse 4 ronde 6 Saturday 20 September 2025 +0–1=0 -9.4
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +0–0=1 +1.5
KNSB competitie 2025-2026 Klasse 5 ronde 6 Saturday 20 September 2025 +0–1=0 -9.7
KNSB competitie 2025-2026 Klasse 4 ronde 5 Saturday 20 September 2025 +0–1=0 -15.3
KNSB competitie 2025-2026 Klasse 4 Ronde 4 Saturday 20 September 2025 +1–0=0 +15.6
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +0–1=0 -11.3
KNSB competitie 2025-2026 Klasse 4 ronde 2 Saturday 20 September 2025 +0–1=0 -14.5
SBO PK Veteranen 2025-2026 a8 Thursday 18 September 2025 +0–1=0 -10.3
SBO PK Veteranen 2025-2026 a7 Thursday 18 September 2025 +0–1=0 -8.2
SBO PK Veteranen 2025-2026 A6 Thursday 18 September 2025 +0–1=0 -3.4
SBO PK Veteranen 2025-2026 A5 Thursday 18 September 2025 +1–0=0 +11.5
SBO PK Veteranen 2025-2026 A4 Thursday 18 September 2025 +0–1=0 -13.0
SBO PK Veteranen 2025-2026 A3 Thursday 18 September 2025 +1–0=0 +9.1
SBO PK Veteranen 2025-2026 A2 Thursday 18 September 2025 +1–0=0 +11.6
SBO PK Veteranen 2025-2026 A1 Thursday 18 September 2025 +0–1=0 -6.6
S.V. Lonneker interne competitie 28-11-2025 t/m 16-01-2026 (030037) Thursday 4 September 2025 +1–0=0 +1.4
S.V. Park Stokhorst interne competitie 11-05-2026 t/m 22-06-2026 (03… Monday 1 September 2025 +4–1=0 +41.3
SOS competitie 2025/2026 Lijst 1 juni Monday 1 September 2025 +0–1=0 -3.4
S.V. Park Stokhorst interne competitie 15-12-2025 t/m 13-04-2026 (03… Monday 1 September 2025 +6–4=1 +23.0
SOS competitie 2025/2026 Lijst 1 mrt Monday 1 September 2025 +0–1=0 -2.3
S.V. Park Stokhorst interne competitie 08-09-2025 t/m 08-12-2025 (03… Monday 1 September 2025 +5–5=1 -38.1
S.V. Park Stokhorst interne competitie 24-03-2025 t/m 23-06-2025 (03… Monday 9 September 2024 +3–3=3 -29.6
SOS Competitie 2024/2025 2025-05 Sunday 1 September 2024 +0–0=1 +1.8

Team Competition

Current teams
Lonneker 1
C · 2025-2026 · 2 games
Lonneker 1
Klasse 4B · 2025-2026 · 5 games
Lonneker 2
D · 2025-2026 · 1 game
Lonneker/Park Stokhorst 2
Klasse 5B · 2025-2026 · 3 games
SV Lonneker 1
HKA · 2025-2026 · 2 games
Past teams
Lonneker 1
Klasse 3A · 2024-2025
Lonneker 2
D · 2024-2025
Lonneker/Park Stokhorst 2
Klasse 5B · 2024-2025
SV Lonneker 1
HKA · 2024-2025
Lonneker 1
Klasse 3B · 2023-2024
Lonneker 2
D · 2023-2024
Lonneker 1
Klasse 3B · 2022-2023
Lonneker 1
1A · 2022-2023
Lonneker 1
Klasse 3B · 2021-2022
SV Lonneker 1
1E · 2019-2020
SV Lonneker 1
1E · 2018-2019

Rating History

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Peak Ratings

Classic 1961 Jan. 1, 2025
Rapid 1868 May 1, 2026
Blitz 1812 March 1, 2026

Games

Wins 25
Losses 27
Draws 7
Win Rate 42%

Performance by Color

Color Wins Draws Losses Win Rate
White 12 2 9 52%
Black 13 5 18 36%

Recent Matches

Grouve, W. (Wouter) (1937) Monday 22 June 2026 LOSS -7.8
Scheper, T. (Tom) (1877) Monday 15 June 2026 WIN +15.2
Meester, M. (Martin) (1665) Monday 8 June 2026 WIN +8.0
Boerrigter, S.H.W. (Stan) (1855) Monday 18 May 2026 WIN +14.4
Werff van der, R. (Rienk) (1774) Monday 11 May 2026 WIN +11.6
Verfuerth, K. (Kevin) (2117) Friday 8 May 2026 LOSS -3.4
Brinkman, J.W. (Jan) (1856) Thursday 16 April 2026 LOSS -10.3
Meijerink, A.W.A. (Alfons) (1743) Monday 13 April 2026 WIN +10.8
Reinders, Y. (Youri) (1903) Saturday 11 April 2026 LOSS -4.4
Fomin, E.F. (Egor) (1936) Monday 30 March 2026 LOSS -8.3
Heine, I. (Ivar) (1903) Saturday 28 March 2026 LOSS -9.4
Burgers, M. (Mark) (1703) Tuesday 24 March 2026 LOSS -16.2
Molen van der, J. (Jarich) (1832) Monday 23 March 2026 WIN +13.2
Kloppenburg, G.T. (Geert) (1940) Thursday 12 March 2026 LOSS -8.2
Postmus, G. (Geert) (1821) Monday 9 March 2026 WIN +12.8
Pen, F. (Frits) (1855) Saturday 7 March 2026 DRAW +1.5
Fomin, E.F. (Egor) (1936) Monday 2 March 2026 LOSS -8.3
Haveman, W.J. (Joost) (1888) Monday 23 February 2026 LOSS -10.4
Peeters, S.R.M. (Sjoerd) (1646) Monday 16 February 2026 LOSS -18.4
Monsma, M. (Menno) (2139) Thursday 12 February 2026 LOSS -3.4