Format
KJ
Kadlec, Jaroslav
🇨🇿FIDE 23729260· Male· Czech Republic· Born in 2009
Follow Jaroslav KadlecTrack his monthly FIDE ratings, games, tournaments and more.
Jaroslav Kadlec, a 17-year-old Czech player, is rated 1591. He is on a steady climb with +28 Elo over the past 12 months. 18 rated games in the past year (≈20/year long-term). Recent standard appearances include 1. liga mladeze D 2025-2026 r8-11, MKSS - Krajska soutez A 2025-2026 r10-11, and 8. Open Bohumin 2025 B - Challenger. His peak of 1623 was reached at age 17 (Jan 2026).
At junior level, he reached #89 nationally in U12.
Current rating
1591
Standard
Rpd—·Blz1565
All-time high
1623
−32 pts below
Jan 2026 · age 17
Jan 2026 · age 17
Activity
17
games / yr avg. · ≈1/mo
18 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#150,390
#150,390 · players worldwide · of 218,279
Career timeline
7 entries2026
Crossed 1600
at age 17
Jan 2026
All-time peak 1623
at age 17 · −32 from today
Jan 2026
2024
Best 12-month gain (+346 Elo)
1247 → 1593
May 2024
Crossed 1500
at age 15
Mar 2024
Crossed 1400
at age 15
Mar 2024
2021
89th Czech U12 player
at age 12 · rated 1213
Dec 2021
Standard rating history
Peak
FIDE title
Threshold
First rated
FIDE recal.
Activity & highlights
Evolution
+28
1563 → 1591
Tournaments
9
22 games
Score
9/ 2240.9%
7W4D11L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
9 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Apr 2026 | 0/1 | #72 | 826 | -19.2 |
Team | Mar 2026 | 1/2 | #43 | 1716 | +12.8 |
Team | Feb 2026 | 0/1 | #99 | 992 | -10.4 |
Team | Jan 2026 | 0/1 | #94 | 989 | -10.8 |
Team | Nov 2025 | 1.5/2 | #14 | 2017 | +48.8 |
Team | Nov 2025 | 2/2 | #6 | 2474 | +57.2 |
Team | Oct 2025 | 0/1 | #69 | 1115 | -3.2 |
Team | Oct 2025 | 1/2 | #42 | 1642 | +14.8 |
Open Swiss | Jun 2025 | 3.5/7 | #84 | 1648 | -62.4 |
Rankings
/
Czech Republic
#4,890
out of 6,361 players
Europe
#100,095
in continent
World
#150,375
out of 400,000+
National ranking
Europe & World
Europe
World
Czech Republic
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