Format
MJ
Mierzynski, Jaroslaw
🇵🇱FIDE 1116827· Male· Poland· Born in 1962
Follow Jaroslaw MierzynskiTrack his monthly FIDE ratings, games, tournaments and more.
Jaroslaw Mierzynski, a 64-year-old Polish player, is rated 1956. He has held steady between 1950 and 2000 for 15 months. 21 rated games in the past year (≈9/year long-term). Recent standard appearances include IV Wielkopolska Liga Seniorow 2026 A Round 3-4, IV Wielkopolska Liga Seniorow 2026 A Round 1-2, and Mistrzostwa Polski Niepelnosprawnych w Szachach 2026. He had 5 career breaks: 14 months (2006–2007), 40 months (2009–2012), 24 months (2012–2015), 12 months (2015–2016) and 12 months (2017–2018). His peak of 2115 was reached at age 39 (Apr 2001).
Current rating
1956
Standard
Rpd1873·Blz1727
All-time high
2115
−159 pts below
Apr 2001 · age 39
Apr 2001 · age 39
Activity
21
games / yr avg. · ≈2/mo
21 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#35,444
#35,444 · players worldwide · of 218,279
Career timeline
19 entries2025
Best 12-month gain (+67 Elo)
1904 → 1971
Oct 2025
28th Polish 60-65 player
at age 63 · rated 1971
Jun 2025
2018
32nd Polish 55-60 player
at age 56 · rated 2004
Oct 2018
2017
Inactive for 12 months
paused at 2004 → returned at 1997
Nov 2017
100 career games
at age 55
Aug 2017
2016
7-month rising streak
+27 Elo
Jul 2016
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
FIDE recal.
Activity & highlights
Top opponent
Evolution
-15
1971 → 1956
Tournaments
4
21 games
Score
14.5/ 2169.0%
12W5D4L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
4 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Round-Robin | Feb 2026 | 1/1 | #26 | 2577 | +5.2 |
Round-Robin | Jan 2026 | 2/2 | #1 | 2507 | +7.8 |
Open Swiss | Jan 2026 | 6/9 | #10 | 1908 | -7.4 |
Swiss | Oct 2025 | 5.5/9 | #11 | 1867 | -20.2 |
Most-Played Opponents
vsEugeniusz Malecki
🇵🇱POL·1945
+0 −1 =7
8 games·last met May 2026
View head-to-head →
vsDawid NiekrasFM
🇵🇱POL·2373
+0 −6 =1
7 games·last met Oct 2019
View head-to-head →
vsManfred Mannke
🇵🇱POL·2023
+1 −0 =5
6 games·last met Mar 2025
View head-to-head →
vsKarol Michalski
🇵🇱POL·2051
+2 −4 =0
6 games·last met Mar 2023
View head-to-head →
vsJoanna Zakrzewska
🇵🇱POL·1741
+3 −2 =1
6 games·last met Jun 2022
View head-to-head →
Rankings
/
Poland
#921
out of 10,822 players
Europe
#26,180
in continent
World
#35,443
out of 400,000+
National ranking
Europe & World
Europe
World
Poland
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| 921 | 1,956 | |
Europe
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| 26180 | 1,956 | |
World
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| 35443 | 1,956 | |