Format
KJ
Kosir, Jaka
🇸🇮FIDE 14625849· Male· Slovenia· Born in 2006
Follow Jaka KosirTrack his monthly FIDE ratings, games, tournaments and more.
Jaka Kosir, a 20-year-old player, is rated 1648 — his current career high. He plays occasionally (5 games in the last 12 months). Recent appearances: 78. LJUBLJANSKA SAHOVSKA LIGA ZA LETO 2026 and I. clanska liga vzhod 2025.
At junior level, he reached #18, #19 and #20 nationally in U20, U18 and U16.
Current rating
1648
Standard
Rpd1680·Blz—
All-time high
1648
at best
May 2026 · age 20
May 2026 · age 20
Activity
5
games / yr avg.
5 past 12 mo
classical only
Occasional
classical only
Occasional
Signature stat
#128,438
#128,438 · players worldwide · of 216,808
Career timeline
10 entries2026
All-time peak 1648
at age 20
May 2026
2025
18th U20 player nationally
at age 19 · rated 1630
Oct 2025
2024
Best 12-month gain (+268 Elo)
1340 → 1608
Mar 2024
Crossed 1600
at age 18
Mar 2024
Crossed 1500
at age 18
Mar 2024
Re-crossed 1400
at age 18
Mar 2024
Standard rating history
Last 12 months — activity & highlights
Evolution
+37
1611 → 1648
Tournaments
2
6 games
Score
2/ 633.3%
2W0D4L
Top 2 wins
Top 3 losses
Last 12 months — tournaments
2 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Jan 2026 | 1/2 | #99 | 1817 | +18.4 |
Open Swiss | Sep 2025 | 1/3 | #48 | 1768 | +18.8 |
Rankings
/
Slovenia
#582
out of 1,431 players
Europe
#88,111
in continent
World
#128,432
out of 400,000+
National ranking
Europe & World
Europe
World
Slovenia
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