Format
KS
Kosecky, Sebastian
🇸🇰FIDE 14959461· Male· Slovakia· Born in 2009
Follow Sebastian KoseckyTrack his monthly FIDE ratings, games, tournaments and more.
Sebastian Kosecky, a 17-year-old Slovak player, is rated 1602 — just 19 short of his peak of 1621 (Mar 2026, age 17). He plays occasionally (4 games in the last 12 months). Recent appearances: 5. liga B11 2025 2026 R8-11 and 3. liga B1 2025 2026 R8-10.
At junior level, he reached #88 and #47 nationally in U16 and U14.
Current rating
1602
Standard
Rpd1595·Blz—
All-time high
1621
−19 pts below
Mar 2026 · age 17
Mar 2026 · age 17
Activity
5
games / yr avg.
4 past 12 mo
classical only
Occasional
classical only
Occasional
Signature stat
#145,630
#145,630 · players worldwide · of 216,808
Career timeline
8 entries2026
All-time peak 1621
at age 17 · −19 from today
Mar 2026
2025
Best 12-month gain (+288 Elo)
1330 → 1618
Feb 2025
2024
Crossed 1600
at age 15
Apr 2024
Crossed 1500
at age 15
Mar 2024
Crossed 1400
at age 15
Mar 2024
88th Slovak U16 player
at age 15 · rated 1330
Jan 2024
Standard rating history
Last 12 months — activity & highlights
Evolution
-3
1605 → 1602
Tournaments
3
6 games
Score
3/ 650.0%
4W0D2L
Top 2 wins
Top 2 losses
Last 12 months — tournaments
3 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 1/2 | #18 | 1587 | -3.6 |
Team | Mar 2026 | 0/1 | #119 | 912 | -15.2 |
Team | Jan 2026 | 2/1 | #9 | 2343 | +16.4 |
Rankings
/
Slovakia
#2,445
out of 3,170 players
Europe
#97,546
in continent
World
#145,618
out of 400,000+
National ranking
Europe & World
Europe
World
Slovakia
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