KNSB FIDE
JB

Johan Bosman

Rated since January 2023

1942 Classic
1942 Rapid
1874 Blitz

Team Competition

Current teams
Botwinnik 2
1e klasse B · 2025-2026 · 6 games
Botwinnik 2
Klasse 5F · 2025-2026 · 7 games
Past teams
Botwinnik 1
Hoofdklasse · 2024-2025
1 game
Botwinnik 1
Klasse 3C · 2024-2025
1 game
Botwinnik 2
1e klasse B · 2024-2025
3 games
Botwinnik 2
Klasse 5H · 2024-2025
7 games
Botwinnik 1
Hoofdklasse · 2023-2024
3 games
Botwinnik 2
Klasse 5H · 2023-2024
6 games
Botwinnik 1
Hoofdklasse · 2022-2023
2 games
Botwinnik 2
klasse 2B · 2022-2023
1 game
Botwinnik 2
Klasse 5G · 2022-2023
6 games
Promotie 2
Klasse 4F · 2021-2022
6 games

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
GEERTSMA, F.J. (FOLKERT-JAN) 1970
13248 KNSB competitie 2025-2026 Klasse 5 ronde 7 · Saturday 7 March 2026
WILLIGHAGEN, G.J. (GERT-JAN) 1917
13465 HSB competitie 2025-2026 CompMrt2026 · Thursday 12 March 2026
BANNING VAN, J. (JAN) 1887
13315 KNSB competitie 2025-2026 Klasse 5 ronde 5 · Saturday 28 March 2026
METSELAAR, H. (HAROLD) 1878
12762 HSB competitie 2025-2026 DecemberJanuari Comp 2526 · Thursday 11 December 2025
VALK BOUMAN VAN DER, J. (JIM) 1842
12265 KNSB competitie 2025-2026 Klasse 5 ronde 2 · Saturday 1 November 2025
Worst losses
HELM VAN DER, T. (TOM) 1806
11911 HSB competitie 2025-2026 September 2025 · Thursday 25 September 2025
BATYREV, E.D. (ERDNI) 1817
12410 KNSB competitie 2025-2026 Klasse 5 Ronde 3 · Saturday 22 November 2025
BAJNATH, D. (DHANESH) 1939
11994 KNSB competitie 2025-2026 Klasse 5 ronde 1 · Saturday 4 October 2025
HYLARIDES, C.R. (CHARLIE RONALD) 1979
12177 HSB competitie 2025-2026 October 2025 · Wednesday 15 October 2025
SAEGHER DE, C. (CHRIS) 2107
11251 KNSB competitie 2024-2025 Klasse 3 ronde 9 · Saturday 10 May 2025
No FIDE-rated tournaments found.
KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +1–0=0 +12.0
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +1–0=0 +14.9
KNSB competitie 2025-2026 Klasse 5 ronde 6 Saturday 20 September 2025 +1–0=0 +9.1
KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +1–0=0 +10.0
KNSB competitie 2025-2026 Klasse 5 Ronde 3 Saturday 20 September 2025 +0–1=0 -13.9
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +1–0=0 +12.0
KNSB competitie 2025-2026 Klasse 5 ronde 1 Saturday 20 September 2025 +0–1=0 -10.3
HSB competitie 2025-2026 CompMrt2026 Monday 1 September 2025 +1–0=0 +13.0
HSB competitie 2025-2026 HSBCompetitieFeb26 Monday 1 September 2025 +0–0=1 +2.9
HSB competitie 2025-2026 DecemberJanuari Comp 2526 Monday 1 September 2025 +1–0=0 +12.9
HSB competitie 2025-2026 November comp Monday 1 September 2025 +1–0=0 +11.7
HSB competitie 2025-2026 October 2025 Monday 1 September 2025 +0–1=0 -9.0
HSB competitie 2025-2026 September 2025 Monday 1 September 2025 +0–1=0 -15.4
KNSB competitie 2024-2025 Klasse 3 ronde 9 Saturday 21 September 2024 +0–1=0 -5.8

Rating History

Loading rating history...

Peak Ratings

Classic 1942 April 1, 2026
Rapid 1942 April 1, 2026
Blitz 1874 March 1, 2026

Games

Wins 8
Losses 5
Draws 1
Win Rate 57%

Performance by Color

Color Wins Draws Losses Win Rate
White 6 1 3 60%
Black 2 0 2 50%

Recent Matches

Banning van, J. (Jan) (1887) Saturday 28 March 2026 WIN +12.0
Willighagen, G.J. (Gert-Jan) (1917) Thursday 12 March 2026 WIN +13.0
Geertsma, F.J. (Folkert-Jan) (1970) Saturday 7 March 2026 WIN +14.9
Baas, J.A. (Han) (1975) Monday 9 February 2026 DRAW +2.9
Koole, P. (Paul) (1790) Saturday 7 February 2026 WIN +9.1
Groenendijk, P.A. (Patrick) (1795) Saturday 13 December 2025 WIN +10.0
Metselaar, H. (Harold) (1878) Thursday 11 December 2025 WIN +12.9
Batyrev, E.D. (Erdni) (1817) Saturday 22 November 2025 LOSS -13.9
Hijkoop, W.J. (Wijnand) (1833) Monday 10 November 2025 WIN +11.7
Valk Bouman van der, J. (Jim) (1842) Saturday 1 November 2025 WIN +12.0
Hylarides, C.R. (Charlie Ronald) (1979) Wednesday 15 October 2025 LOSS -9.0
Bajnath, D. (Dhanesh) (1939) Saturday 4 October 2025 LOSS -10.3
Helm van der, T. (Tom) (1806) Thursday 25 September 2025 LOSS -15.4
Saegher de, C. (Chris) (2107) Saturday 10 May 2025 LOSS -5.8