Format
KL
Koziel, Leon
🇵🇱FIDE 21096155· Male· Poland· Born in 2010
Follow Leon KozielTrack his monthly FIDE ratings, games, tournaments and more.
Leon Koziel, a 16-year-old Polish player, is rated 1569 — his current career high. He is on a breakout run, having gained +147 Elo over the past 12 months. 16 rated games in the past year (≈24/year long-term). Recent standard appearances include Swietokrzyska Liga Szachowa 2025 - Turniej IV (A) - od 1600 PZSzach, Grand Hotel Kielce Chess Open 2025 - Turniej B, and Mistrzostwa Wojewodztwa Juniorow w szachach klasycznych na rok 2025 - C16. Also played 3 rapid (including Mistrzostwa Polski Juniorow w Szachach Szybkich 2025 - grupa C16) and 1 blitz events (including Mistrzostwa Polski Juniorow w Szachach Blyskawicznych 2025 - grupa C16) recently.
Current rating
1569
Standard
Rpd1429·Blz1425
All-time high
1569
at best
Jan 2026 · age 16
Jan 2026 · age 16
Activity
24
games / yr avg. · ≈2/mo
12 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#158,976
#158,976 · players worldwide · of 218,279
Career timeline
7 entries2026
All-time peak 1569
at age 16
Jan 2026
2025
Crossed 1500
at age 15
Aug 2025
2024
Best 12-month gain (+463 Elo)
1008 → 1471
Jun 2024
Re-crossed 1400
at age 14
Jun 2024
Crossed 1400
at age 14
Mar 2024
Crossed 1200
at age 14
Mar 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
FIDE recal.
Activity & highlights
Best result
Swietokrzyska Liga Szachowa 2025 - Turniej IV (A) - od 1600 PZSzachperf 1616 (+59) · 1.5/5 · #25
Top opponent
Evolution
—
Tournaments
2
20 games
Score
5/ 2025.0%
7W4D9L
Top 3 wins
1.[W]vsNatalia Opala1,774·Swietokrzyska Liga Szachowa 2025 - Turniej IV (A) - od 1600 PZSzach·R3·+31.1
3.[W]vsJan Jamrozek1,635·Mistrzostwa Wojewodztwa Swietokrzyskiego Juniorow na rok 2026 - C16·R7·+23.8
Top 3 losses
1.[L]vsAdam Mieszczankowski1,594·Mistrzostwa Wojewodztwa Swietokrzyskiego Juniorow na rok 2026 - C16·R6·-18.6
Last 12 months — tournaments
2 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Nov 2025 | 1.5/5 | #25 | 1616 | +12.0 |
Open Swiss | Jun 2025 | 3.5/7 | #91 | 1471 | 0.0 |
Rankings
/
Poland
#4,253
out of 10,822 players
Europe
#104,569
in continent
World
#158,960
out of 400,000+
National ranking
Europe & World
Europe
World
Poland
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| ... | ||
| 4253 | 1,569 | |
Europe
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 3 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 4 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,744 |
| 5 | 🇵🇱Follow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more. | 2,739 |
| 6 | 🇭🇺Follow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more. | 2,729 |
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| ... | ||
| 104569 | 1,569 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
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| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
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| ... | ||
| 158960 | 1,569 | |