Format
KJ
Koci, Jiri
🇨🇿FIDE 341029· Male· Czech Republic· Born in 1946
Follow Jiri KociTrack his monthly FIDE ratings, games, tournaments and more.
Jiri Koci, a 80-year-old Czech player, is rated 1704 — his current career high. He plays occasionally (5 games in the last 12 months) and took a 12-month break between Feb 2024 and Mar 2025. Recent appearance: JMSS - Krajsky prebor II B 2025-2026 r8-9.
Current rating
1704
Standard
Rpd—·Blz—
All-time high
1704
at best
Mar 2026 · age 80
Mar 2026 · age 80
Activity
5
games / yr avg.
5 past 12 mo
classical only
Occasional
classical only
Occasional
Signature stat
#108,530
#108,530 · players worldwide · of 218,279
Career timeline
7 entries2026
Best 12-month gain (+40 Elo)
1664 → 1704
Mar 2026
All-time peak 1704
at age 80
Mar 2026
2024
Crossed 1600
at age 78
Mar 2024
Crossed 1500
at age 78
Mar 2024
Crossed 1400
at age 78
Feb 2024
Inactive for 12 months
paused at 1445 → returned at 1664
Feb 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
FIDE recal.
Activity & highlights
Evolution
+40
1664 → 1704
Tournaments
4
7 games
Score
4.5/ 764.3%
3W3D1L
Top 3 wins
Top 1 loss
Last 12 months — tournaments
4 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Feb 2026 | 1.5/1 | #35 | 2647 | +29.2 |
Team | Jan 2026 | 0/1 | #90 | 1157 | -6.8 |
Team | Nov 2025 | 1.5/2 | #14 | 1857 | +20.4 |
Team | Nov 2025 | 1.5/1 | #46 | 2431 | -2.0 |
Rankings
/
Czech Republic
#4,097
out of 6,361 players
Europe
#76,296
in continent
World
#108,527
out of 400,000+
National ranking
Europe & World
Europe
World
Czech Republic
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