Janusz Parczewski

POL · 58 yrs · K=20 · Peak 2031 (Apr 2008)

Best performance: 2131 at Open Mazovia Team Championship(Best of 2008)

NOV26 Rating

1880

Live Rating

1880.0

Change

0.0

Games Played

How live ratings are calculated

Rating History · Classical

Loading chart…

Official classical rating by month

List	Rating	Change
Nov 2026	1880	0
Oct 2026	1880	0
Sep 2026	1880	0
Aug 2026	1880	0
Jul 2026	1880	0
Jun 2026	1880	0
May 2026	1880	0
Apr 2026	1880	0
Mar 2026	1880	0
Feb 2026	1880	0
Jan 2026	1880	0
Dec 2025	1880	0

Form · Classical

oldest → latest

From 166 classical games on record, the latest on Mar 8, 2025.

Classical games since the November list

No rated standard games this rating periodsince the NOV26 list (Nov 1, 2026)

	Last played	Score	TPR
	Otwarta Liga Mazowiecka 2025 Round 7-10Mar 8, 2025 – Mar 22, 2025	½/2	—

The live rating moves only when new rated games are played. Until then it matches the published rating.

Best wins · Classical

From 151 rated classical games against rated opponents, 2006–2025

#	Opponent	Rating
1,	IM Jan Adamski, Jan 2018 · Druzynowe Mistrzostwa Mazowsza 2017-2018	, 2243
2,	CM Slawomir Kurpiewski, Jan 2011 · Druzynowe Mistrzostwa Mazowsza	, 2201
3,	Piotr Ciechonski, Jul 2009 · Mazovian Chess Festival - Open B	, 2122
4,	Robert Rafa, Oct 2006 · Open Mazovia Team Championship	, 2081
5,	Wieslaw Rawski, May 2013 · Mistrzostwa Wojska Polskiego	, 2074
6,	Pawel Bielecki, Aug 2008 · Mazovian International Chess Festival gr. B	, 2063
7,	Krzysztof Sokolowski, Nov 2007 · Open Mazovia Team Championship	, 2060
8,	Pawel Jarmula, Jan 2011 · Druzynowe Mistrzostwa Mazowsza	, 2030
9,	Jacek Jozwik, Apr 2009 · Open Mazovia Team Championship	, 2022
10,	Krzysztof Spicak, Jul 2009 · Mazovian Chess Festival - Open B	, 2006

#	Opponent	Overall	Rating
1,	IM Jan Pinski, Highest-rated meeting: Mar 2011 · Druzynowe Mistrzostwa Mazowsza	, 0/1	, 2374
2,	Piotr Wojciechowski, Highest-rated meeting: Jul 2009 · Mazovian Chess Festival - Open B	, 0/1	, 2279
3,	Krystian Jedryczka, Highest-rated meeting: Aug 2008 · Mazovian International Chess Festival gr. B	, 0/1	, 2265
4,	Adam Wegrzyn, Highest-rated meeting: Jan 2010 · Liga Mazowiecka 2009/2010	, 0/1	, 2254
5,	IM Jan Adamski, Highest-rated meeting: Jan 2018 · Druzynowe Mistrzostwa Mazowsza 2017-2018	, 1/1	, 2243
6,	FM Robert Bugajski, Highest-rated meeting: Jan 2010 · Liga Mazowiecka 2009/2010	, 0/1	, 2209
7,	CM Slawomir Kurpiewski, Highest-rated meeting: Jan 2011 · Druzynowe Mistrzostwa Mazowsza	, 1/1	, 2201
8,	CM Michal Walentukiewicz, Highest-rated meeting: Aug 2008 · Mazovian International Chess Festival gr. B	, ½/1	, 2200
9,	FM Dionizy Barwinski, Highest-rated meeting: Aug 2008 · Mazovian International Chess Festival gr. B	, 0/1	, 2183
10,	Slawomir Krainski, Highest-rated meeting: Oct 2017 · Mistrzostwa Wojska Polskiego 2017	, ½/4	, 2175

Openings · Classical

From the moves of 50 of 166 classical games on record.

As WhiteOpens 1.d4 in 19 of 24 games, 1.Nf3 in 5.

As BlackMeets 1.e4 with 1...e6, and 1.d4 with 1...e6 or 1...Nf6.

All openings (4 as White, 2 as Black)

Openings in White games	Games	Score
Nimzo-Indian Defense	5	40%
Slav Defense	4	75%
King's Indian Defense	3	67%
Zukertort Opening	3	50%

9 more games in openings played fewer than 3 times.

Openings in Black games	Games	Score
French Defense	12	63%
Queen's Gambit Declined	3	17%

Event timeline · Classical

27 events

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

Performance rating by year

Year	Games	Score	Avg opp	TPR
2025	8	3½	1780	1737
2024	7	4½	1780	1882
2019	8	4	1807	1807
2017	9	4	1885	1842
2016	11	6	1716	1752
2015	2	1½	1663	—
2014	16	8½	1687	1708
2013	11	6½	1855	1920
2012	14	8½	1784	1864
2011	13	7	1998	2027
2009	21	9	2017	1967
2006	6	3½	1999	2056

Games count in the month they were played. Each month and year is one performance rating over all of its rated games.

Otwarta Liga Mazowiecka 2025 Round 7-10—(2)
Mar 2025Teamfederation source
Score ½/2Opp avg 1841Start 1893
Otwarta Liga Mazowiecka 2025 Round 5-6—(2)
Feb 2025Teamfederation source
Score 1/2Opp avg 1779Start 1899
Otwarta Liga Mazowiecka 2025 Round 1-41750
Jan 2025Teamfederation source
Best of 2025Score 2/4Opp avg 1750Start 1914
Otwarta Liga Mazowiecka 2024 Round 7-10—(1)
Mar 2024Teamfederation source
Score ½/1Opp avg 1813Start 1917
Otwarta Liga Mazowiecka 2024 Round 3-61868
Feb 2024Teamfederation source
Best of 2024Score 2/4Opp avg 1868Start 1861
Otwarta Liga Mazowiecka 2024 Round 1-2—(2)
Jan 2024Teamfederation source
Score 2/2Opp avg 1588Start 1850
Mistrzostwa Wojska Polskiego 20191807
Sep 2019Swissfederation source
Best of 2019Score 5/9Opp avg 1807Start 1860
Druzynowe Mistrzostwa Mazowsza 2017-2018—(2)
Dec 2017 – Mar 2018Teamfederation source
Score 1/2Opp avg 2167Start 1883
Otwarta Liga Mazowiecka 2017-20181430
Dec 2017 – Mar 2018Teamfederation source
Best of 2018Score ½/4Opp avg 1752Start 1883
Mistrzostwa Wojska Polskiego 20171899
Oct 2017Swissfederation source
Best of 2017Score 5/9Opp avg 1899Start 1874
Mistrzostwa Wojska Polskiego 20161712
May 2016Swissfederation source
Best of 2016Score 5/9Opp avg 1669Start 1900
Druzynowe Mistrzostwa Mazowsza 2015-2016—(2)
Dec 2015 – Feb 2016Teamfederation source
Score 1/2Opp avg 1927Start 1898
Druzynowe Mistrzostwa Mazowsza 2014/2015—(2)
Jan – Mar 2015Teamfederation source
Score 1½/2Opp avg 1663Start 1900
Mistrzostwa Wojska Polskiego w szachach1760
May 2014Swissfederation source
Best of 2014Score 5/9Opp avg 1665Start 1911
Druzynowe Mistrzostwa Mazowsza 2013/20141667
Jan – Mar 2014Teamfederation source
#2 in 2014Score 4½/9Opp avg 1710Start 1950
Mistrzostwa Wojska Polskiego1951
May 2013Swissfederation source
Best of 2013Score 5/9Opp avg 1894Start 1947
Druzynowe Mistrzostwa Mazowsza 2012/20131879
Jan – Feb 2013Teamfederation source
#2 in 2013Score 3/5Opp avg 1807Start 1953
Miedzynarodowy Festiwal Szachowy im. M.Najdorfa gr. B1787
Aug 2012Swissfederation source
#2 in 2012Score 5½/9Opp avg 1707Start 1983
Druzynowe Mistrzostwa Mazowsza 20121993
Jan – Feb 2012Teamfederation source
Best of 2012Score 3/5Opp avg 1921Start 1981
Mistrzostwa Polski Wojska Polskiego1959
May 2011Swissfederation source
#2 in 2011Score 5/9Opp avg 1902Start 1982
Druzynowe Mistrzostwa Mazowsza2080
Jan – Mar 2011Teamfederation source
Best of 2011Score 3½/7Opp avg 2080Start 1968
Liga Mazowiecka 2009/20101795
Nov 2009 – May 2010Teamfederation source
Best of 2010Score 2/11Opp avg 2035Start 2007
Mazovian Chess Festival - Open B1934
Jul 2009Swissfederation source
#2 in 2009Score 2½/9Opp avg 2100Start 2023
Open Mazovia Team Championship2038
Jan – May 2009Teamfederation source
Best of 2009Score 6½/10Opp avg 1928Start 2007
Mazovian International Chess Festival gr. B1954
Aug 2008Swissfederation source
#2 in 2008Score 2½/9Opp avg 2120Start 2031

Live ratings projected from the NOV26 published list · Not affiliated with FIDE