KNSB FIDE
IV

Isaac Visser

Rated since January 2023

1784 Classic
1801 Rapid
1784 Blitz

Team Competition

Current team
HWP Haarlem 4
Klasse 5I · 2024-2025 · 6 games
Past teams
HWP Haarlem 4
Klasse 5H · 2023-2024
5 games
HWP Haarlem 2
Klasse 3D · 2022-2023
1 game
HWP Haarlem 3
Klasse 4D · 2022-2023
1 game
HWP Haarlem 4
Klasse 5E · 2022-2023
4 games
HWP Haarlem 2
Klasse 3D · 2021-2022
1 game
HWP Haarlem 4
Klasse 6C · 2021-2022
6 games

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
MAU-ASAM, L.L.R. (LÉON) 1829
10705 KNSB competitie 2024-2025 Klasse 5 ronde 6 · Saturday 8 March 2025
KONING, P.H. (PIET HEIN) 1773
11022 KNSB competitie 2024-2025 Klasse 5 ronde 7 · Saturday 5 April 2025
BIJPOST, R. (ROB) 1702
6169 KNSB competitie 2022-2023 Klasse 5 ronde 3 · Saturday 26 November 2022
KOEVOETS, M.A.C. (RINUS) 1701
6733 KNSB competitie 2022-2023 Klasse 5 ronde 6 · Saturday 11 March 2023
PIET, T.D. (TOBIAS) 1200
6557 KNSB competitie 2022-2023 Klasse 5 ronde 5 · Saturday 11 February 2023
Worst losses
ABAS, K.H. (KARDO) 1483
7641 KNSB competitie 2023-2024 Klasse 5 ronde 1 · Saturday 7 October 2023
HELDOORN, J. (JOEP) 1697
7799 KNSB competitie 2023-2024 Klasse 5 ronde 2 · Saturday 4 November 2023
KIMENAI, C.H.M. (CASPER) 1750
9800 KNSB competitie 2024-2025 Klasse 5 ronde 2 · Saturday 9 November 2024
CORNELISSEN, J.B. (JORT) 1791
8573 KNSB competitie 2023-2024 Klasse 5 ronde 6 · Saturday 2 March 2024
SOSEF, N.S. (NOAH) 1796
10496 KNSB competitie 2024-2025 Klasse 5 ronde 5 · Saturday 8 February 2025
No FIDE-rated tournaments found.
KNSB competitie 2024-2025 Klasse 5 ronde 7 Saturday 21 September 2024 +1–0=0 +20.6
KNSB competitie 2024-2025 Klasse 5 ronde 6 Saturday 21 September 2024 +1–0=0 +25.6
KNSB competitie 2024-2025 Klasse 5 ronde 5 Saturday 21 September 2024 +0–1=0 -18.1
KNSB competitie 2024-2025 Klasse 5 ronde 4 Saturday 21 September 2024 +0–0=1 +2.6
KNSB competitie 2024-2025 Klasse 5 ronde 3 Saturday 21 September 2024 +0–0=1 +6.1
KNSB competitie 2024-2025 Klasse 5 ronde 2 Saturday 21 September 2024 +0–1=0 -22.1
KNSB competitie 2023-2024 Klasse 5 ronde 6 Saturday 16 September 2023 +0–1=0 -16.5
KNSB competitie 2023-2024 Klasse 5 ronde 5 Saturday 16 September 2023 +0–0=1 +0.3
KNSB competitie 2023-2024 Klasse 5 ronde 3 Saturday 16 September 2023 +0–1=0 -5.8
KNSB competitie 2023-2024 Klasse 5 ronde 2 Saturday 16 September 2023 +0–1=0 -17.2
KNSB competitie 2023-2024 Klasse 5 ronde 1 Saturday 16 September 2023 +0–1=0 -10.8
KNSB competitie 2022-2023 Klasse 4 ronde 9 Saturday 17 September 2022 +0–0=1 +6.7
KNSB competitie 2022-2023 Klasse 5 ronde 6 Saturday 17 September 2022 +1–0=0 +27.3
KNSB competitie 2022-2023 Klasse 5 ronde 5 Saturday 17 September 2022 +1–0=0 +2.5
KNSB competitie 2022-2023 Klasse 5 ronde 3 Saturday 17 September 2022 +1–0=0 +29.8

Rating History

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Peak Ratings

Classic 1818 March 1, 2024
Rapid 1801 July 1, 2024
Blitz 1784 March 1, 2026

Games

Wins 5
Losses 6
Draws 4
Win Rate 33%

Performance by Color

Color Wins Draws Losses Win Rate
White 1 2 2 20%
Black 4 2 4 40%

Recent Matches

Koning, P.H. (Piet Hein) (1773) Saturday 5 April 2025 WIN +20.6
Mau-Asam, L.L.R. (Léon) (1829) Saturday 8 March 2025 WIN +25.6
Sosef, N.S. (Noah) (1796) Saturday 8 February 2025 LOSS -18.1
Hofstee, M.G. (Martijn) (1783) Saturday 14 December 2024 DRAW +2.6
Henn, R.A. (Reinhard) (1851) Saturday 23 November 2024 DRAW +6.1
Kimenai, C.H.M. (Casper) (1750) Saturday 9 November 2024 LOSS -22.1
Cornelissen, J.B. (Jort) (1791) Saturday 2 March 2024 LOSS -16.5
Bregman, K.J. (Koen) (1713) Saturday 3 February 2024 DRAW +0.3
Bolle, L. (Leo) (1807) Saturday 25 November 2023 LOSS -5.8
Heldoorn, J. (Joep) (1697) Saturday 4 November 2023 LOSS -17.2
Abas, K.H. (Kardo) (1483) Saturday 7 October 2023 LOSS -10.8
Vlugt, F. (Frans) (1721) Saturday 22 April 2023 DRAW +6.7
Koevoets, M.A.C. (Rinus) (1701) Saturday 11 March 2023 WIN +27.3
Piet, T.D. (Tobias) (1200) Saturday 11 February 2023 WIN +2.5
Bijpost, R. (Rob) (1702) Saturday 26 November 2022 WIN +29.8