Jakub Kosakowski

Country

POL

Birth Year

2002

Gender

M

Title

Grandmaster

FIDE ID

1185080

USCF ID

31151577

USCF Rating

2517/19

FIDE ratings

2518

Classical

Published FIDE

2551

Rapid

Published FIDE

2528

Blitz

Published FIDE

Official classical ranks

World rank
#455
National rank · POL
#12

Active players · Oct 2026 FIDE list ⓘ

FIDE rating history

Highest recorded rating
2551 Jul 2025
Recorded years
2011–2026
Archived games
2856

Based on available monthly lists and saved games.

ECF ratings

English rankings

ECF code 380029F · Poland · Latest available list 2026-10-01

2659Standard
—Rapid
—Blitz

ECF rating history

Revised published ratings. Pre-July 2020 grades use a separate scale.

Published lists
DateTypeScaleOriginalRevised
2026-10-01standardrating26592659
2026-09-01standardrating26592659
2026-08-01standardrating26592659
2026-07-01standardrating26592659
2026-06-01standardrating26592659
2026-05-01standardrating26632663
2026-04-01standardrating26632663
2026-03-01standardrating26632663
2026-02-01standardrating26632663
2026-01-01standardrating26682668
2025-12-01standardrating26672668
2025-11-01standardrating26302631
2025-10-01standardrating26302631
2025-09-01standardrating26302631

Historical coverage is still being added.

FIDE rating history

Published rating lists through Oct 2026.

View rating lists

USCF rating history

Published rating lists through Oct 2026.

View rating lists
Available Games

Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-09 (UTC).

# Date Event Site Round White Black Result Moves View
351 2026-02-12 2nd 3-0 Thu 12th Feb 2026 chess.com INT 2 Dreelinck,Jacob Kosakowski,Jakub 0-1 28 Open
352 2026-02-12 2nd 3-0 Thu 12th Feb 2026 chess.com INT 5 Tabatabaei,M Kosakowski,Jakub 0-1 74 Open
353 2026-02-12 1st 3-0 Thu 12th Feb 2026 chess.com INT 5 Kosakowski,Jakub Melillo,Lucius 1-0 19 Open
354 2026-02-12 1st 3-0 Thu 12th Feb 2026 chess.com INT 10 Kosakowski,Jakub Shandrygin,Nikita 1-0 29 Open
355 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 4 Kosakowski,Jakub Baradaran Tamadon,Arian 1-0 57 Open
356 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 11 Drygalov,Sergey Kosakowski,Jakub 1/2-1/2 33 Open
357 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 7 Kosakowski,Jakub Wartiovaara,Oliver 1-0 50 Open
358 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 1 Ferey,Antonin Kosakowski,Jakub 0-1 35 Open
359 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 10 Kosakowski,Jakub Kaidanov,G 1-0 41 Open
360 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 6 Bluebaum,M Kosakowski,Jakub 1-0 27 Open
361 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 5 Barria Zuniga,D Kosakowski,Jakub 0-1 42 Open
362 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 9 Sethuraman,Roshan Kosakowski,Jakub 0-1 27 Open
363 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 8 Kosakowski,Jakub Grischuk,A 0-1 48 Open
364 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 3 Oro,Faustino Kosakowski,Jakub 1-0 51 Open
365 2026-02-10 Titled Tue 10th Feb 2026 chess.com INT 2 Kosakowski,Jakub Silwal,Purushottam 1-0 51 Open
366 2026-02-08 Bundesliga 2025-26 Dresden GER 6.7 Jakub Kosakowski Liviu-Dieter Nisipeanu 0-1 32 Open
367 2026-02-08 Deutsche Schachbundesliga 2025/2026 https://lichess.org/broadcast/german-bundesliga-202526/round-6/2hgbLbso/Pcyb2l6b 6.4 Jakub Kosakowski Liviu-Dieter Nisipeanu 0-1 32 Open
368 2026-02-07 Bundesliga 2025-26 Dresden GER 5.8 Marius Fromm Jakub Kosakowski 1-0 68 Open
369 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 9 Jakub Kosakowski Stelios Halkias 0-1 36 Open
370 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 8 Ivan Povshednyi Jakub Kosakowski 1-0 14 Open
371 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 7 Jakub Kosakowski Vladislav Lymar 0-1 87 Open
372 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 6 Jakub Kosakowski Gianmarco Leiva 1-0 51 Open
373 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 5 Renato Terry Jakub Kosakowski 1-0 43 Open
374 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 4 Jakub Kosakowski Logan C Shafer 1-0 35 Open
375 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 3 Nikolai Vlassov Jakub Kosakowski 0-1 40 Open
376 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 2 Jakub Kosakowski Meri Arabidze 0-1 63 Open
377 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 1 Dmitrij Osetrov Jakub Kosakowski 0-1 67 Open
378 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 11 Leonardo Lopes Dos Santos Jakub Kosakowski 0-1 34 Open
379 2026-02-05 2nd 3-0 Thu 5th Feb 2026 chess.com INT 10 Michal Kopczynski Jakub Kosakowski 1-0 48 Open
380 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 9 Jeffery Xiong Jakub Kosakowski 1-0 30 Open
381 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 8 Jakub Kosakowski Zhauynbay Aldiyar 1-0 29 Open
382 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 7 Rose Atwell Jakub Kosakowski 0-1 33 Open
383 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 6 Jakub Kosakowski Sarbartho Mani 0-1 39 Open
384 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 5 Bogdan-Daniel Deac Jakub Kosakowski 1-0 36 Open
385 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 4 Tim Sauer Jakub Kosakowski 0-1 42 Open
386 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 3 Jakub Kosakowski Alexei Gubajdullin 1-0 41 Open
387 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 2 Jakub Kosakowski Anna Shukhman 1/2-1/2 57 Open
388 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 1 Juan Antonio Urbina Perez Jakub Kosakowski 0-1 65 Open
389 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 11 Alexandros Papasimakopoulos Jakub Kosakowski 1/2-1/2 61 Open
390 2026-02-03 Titled Tue 3rd Feb 2026 chess.com INT 10 Jakub Kosakowski Allahverdi Hamidov 1-0 50 Open
391 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 9 Sajid Sakline Mostafa Jakub Kosakowski 0-1 50 Open
392 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 8 Rafael Sharon Jakub Kosakowski 0-1 33 Open
393 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 7 Jakub Kosakowski Nika Volkov 0-1 52 Open
394 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 6 Raghav V Jakub Kosakowski 0-1 22 Open
395 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 5 Jakub Kosakowski Le Phan Hoang Quan 0-1 32 Open
396 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 4 Alexei Gubajdullin Jakub Kosakowski 0-1 57 Open
397 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 3 Jakub Kosakowski Andrei Olhovik 1-0 20 Open
398 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 2 Lorenzo Lodici Jakub Kosakowski 1-0 32 Open
399 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 1 Jakub Kosakowski Tihomir Yanev 1-0 41 Open
400 2026-01-27 Titled Tue 27th Jan 2026 chess.com INT 11 Maksim Omariev Jakub Kosakowski 0-1 51 Open

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