Format
SB
Sieczkowski, Bartosz
🇵🇱FIDE 41839536· Male· Poland· Born in 2015
Follow Bartosz SieczkowskiTrack his monthly FIDE ratings, games, tournaments and more.
Bartosz Sieczkowski, a 11-year-old Polish player, is rated 1485. He has slipped back 92 Elo over the past 12 months. 45 rated games in the past year (≈29/year long-term). Recent standard appearances include Mistrzostwa Slaska Juniorow 2026 - C11, Druzynowe Mistrzostwa Slaska Juniorow - I Liga 2026 Round 6-9, and Forteca Chess Challenge - o male normy II.I,K. - do FIDE - 5 Rund (BAKU). Also played 6 rapid (including IV Gliwicki Festiwal Szachowy - MBF Group Open) and 4 blitz events (including IV Gliwicki Festiwal Szachowy - Columbus Open) recently. His peak of 1607 was reached at age 10 (May 2025).
At junior level, he reached #35 nationally in U10.
Current rating
1485
Standard
Rpd1537·Blz1481
All-time high
1607
−122 pts below
May 2025 · age 10
May 2025 · age 10
Activity
30
games / yr avg. · ≈3/mo
40 past 12 mo · ≈3/mo
classical only
Active
classical only
Active
Signature stat
#191,403
#191,403 · players worldwide · of 218,279
Career timeline
8 entries2025
Re-crossed 1500
at age 10
Nov 2025
35th Polish U10 player
at age 10 · rated 1607
May 2025
Best 12-month gain (+186 Elo)
1421 → 1607
May 2025
Crossed 1600
at age 10
May 2025
All-time peak 1607
at age 10 · −122 from today
May 2025
Crossed 1500
at age 10
Feb 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Top opponent
Evolution
-105
1590 → 1485
Tournaments
9
59 games
Score
29.5/ 5950.0%
24W11D24L
Top 3 wins
Top 3 losses
1.[L]vsMichal Schudy1,467·Forteca Chess Challenge - o male normy II.I,K. - do FIDE - 5 Rund (BAKU)·R1·-23.8
Last 12 months — tournaments
9 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | May 2026 | 3.5/3 | #29 | 2397 | -26.0 |
Open Swiss | Mar 2026 | 2.5/2 | #103 | 2372 | -22.8 |
Swiss | Mar 2026 | 1/4 | #23 | 1349 | -43.2 |
Open Swiss | Feb 2026 | 3.5/3 | #20 | 2627 | +22.8 |
Open Swiss | Jan 2026 | 5/1 | #64 | 2273 | +16.8 |
Swiss | Oct 2025 | 4.5/9 | #5 | 1607 | +57.2 |
Swiss | Sep 2025 | 1.5/5 | #18 | 1402 | -25.6 |
Open Swiss | Aug 2025 | 3.5/6 | #150 | 1575 | -81.2 |
Open Swiss | Jul 2025 | 4.5/8 | #59 | 1693 | +5.2 |
Worst Elo result: 61st International Akiba Rubinstein Chess Festival - OPEN D (-81.2 Elo, finished #150).
Most-Played Opponents
vsFabian Trzopek
🇵🇱POL·1589
+0 −8 =0
8 games·last met Dec 2025
View head-to-head →
vsIgor Reterski
🇵🇱POL
+5 −2 =1
8 games·last met Oct 2025
View head-to-head →
vsHanna Sieczkowska
🇵🇱POL·1663
+2 −3 =2
7 games·last met Jun 2026
View head-to-head →
vsSzymon Buziak
🇵🇱POL·1443
+3 −3 =1
7 games·last met Oct 2025
View head-to-head →
vsAlbert Janik
🇵🇱POL·1712
+2 −5 =0
7 games·last met Oct 2025
View head-to-head →
Rankings
/
Poland
#5,465
out of 10,822 players
Europe
#119,526
in continent
World
#191,327
out of 400,000+
National ranking
Europe & World
Europe
World
Poland
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