Format
KI
Karolczuk, Iwo
IM🇵🇱FIDE 21816972· Male· Poland· Born in 2006
Follow Iwo KarolczukTrack his monthly FIDE ratings, games, tournaments and more.
Iwo Karolczuk, a 20-year-old Polish International Master, is rated 2373 and ranked 3rd among Polish players under 20, and in the top 1% worldwide. He has held steady between 2350 and 2400 for 9 months. 29 rated games in the past year (≈71/year long-term). Recent standard appearances include Ponte de Lima Chess Festival 2026, Druzynowe Mistrzostwa Polski - I Liga 2025, and 34th OPEN CHESS TOURNAMENT OF KAVALA VASILIS THEODORIDIS A. Also played 14 rapid (including Akademickie Mistrzostwa Polski 2026 - Turniej Druzynowy) and 1 blitz events (including Warsaw Chess Festival - Jan Macieja Memorial - group A) recently. His peak of 2406 was reached at age 19 (Jul 2025, Polish #57 at the time).
Awarded IM in 2025 (age 19) and FM in 2021 (age 15). At junior level, he reached World #80 in U20, World #86 in U18, World #40 in U16, World #95 in U14 and #5 and #14 nationally in U12 and U10.
Current rating
2373
Standard
Rpd2366·Blz2328
All-time high
2406
−33 pts below
Jul 2025 · age 19
Jul 2025 · age 19
Activity
66
games / yr avg. · ≈6/mo
29 past 12 mo · ≈2/mo
classical only
Active
classical only
Active
Signature stat
#3
#3 · Polish players under 20 · of 452
Career timeline
21 entries2025
IM title awardedIM
at age 19 · 2025 3rd FIDE Council
Nov 2025
Peak Polish rank: #57
at age 19 · rated 2406
Aug 2025
80th U20 player worldwide
at age 19 · rated 2406
Aug 2025
Crossed 2400
at age 19
Jul 2025
All-time peak 2406
at age 19 · −33 from today
Jul 2025
K-factor lowered to 10
at age 19
Jul 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
COVID-19
Activity & highlights
Top opponent
Evolution
-33
2406 → 2373
Tournaments
3
20 games
Score
10/ 2050.0%
6W8D6L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
3 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Mar 2026 | 5/7 | #7 | 2367 | +0.1 |
Open Swiss | Sep 2025 | 3.5/9 | #88 | 2268 | -14.8 |
Open Swiss | Jul 2025 | 1.5/4 | #198 | 2051 | -17.6 |
Worst Elo result: 34th OPEN CHESS TOURNAMENT OF KAVALA VASILIS THEODORIDIS A (-17.6 Elo, finished #198).
Most-Played Opponents
vsStanislaw KostyraIM
🇵🇱POL·2190
+21 −34 =42
97 games·last met Mar 2024
View head-to-head →
vsAdrian BudziszCM
🇵🇱POL·2081
+53 −10 =21
84 games·last met Jan 2025
View head-to-head →
vsMaciej Kaminski
🇵🇱POL·1857
+32 −16 =36
84 games·last met Mar 2024
View head-to-head →
vsAndrzej Ocytko
🇵🇱POL·1974
+32 −21 =30
83 games·last met Mar 2026
View head-to-head →
vsAleks Bancarewicz
🇵🇱POL·1969
+50 −4 =18
72 games·last met Nov 2023
View head-to-head →
Rankings
/
Poland
#86
out of 10,822 players
Europe
#1,375
in continent
World
#2,157
out of 400,000+
National ranking
Europe & World
Europe
World
Poland
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| ... | ||
| 86 | 2,373 | |
Europe
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| ... | ||
| 1375 | 2,373 | |
World
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| ... | ||
| 2157 | 2,373 | |