Format
PK
Petrov, Kosta
🇨🇭FIDE 1322117· Male· Switzerland· Born in 1948
Follow Kosta PetrovTrack his monthly FIDE ratings, games, tournaments and more.
Kosta Petrov, a 78-year-old Swiss player, is rated 1857 — just 2 short of his peak of 1859 (May 2026, age 78). He plays occasionally (7 games in the last 12 months). Recent standard appearances include SMM Ligen 1-4 2026 round 3, SMM Ligen 1-4 2026 round 2, and SGM 2025-2026 (all leagues) Promotion.
Current rating
1857
Standard
Rpd—·Blz—
All-time high
1859
−2 pts below
May 2026 · age 78
May 2026 · age 78
Activity
17
games / yr avg. · ≈1/mo
7 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#59,454
#59,454 · players worldwide · of 218,279
Career timeline
5 entries2026
28th Swiss 75-80 player
at age 78 · rated 1857
Jun 2026
All-time peak 1859
at age 78 · −2 from today
May 2026
Crossed 1800
at age 78
Feb 2026
Crossed 1600
at age 78
Feb 2026
First FIDE rating
1838 · at age 78
Feb 2026
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Evolution
+19
1838 → 1857
Tournaments
8
13 games
Score
5.5/ 1342.3%
6W7D0L
Top 3 wins
Top losses
Undefeated in the last 12 months.
Last 12 months — tournaments
8 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | May 2026 | 0.5/1 | #866 | 1801 | -1.6 |
Team | Apr 2026 | 1/1 | #254 | 2660 | +10.4 |
Team | Apr 2026 | 0.5/1 | #76 | 1864 | +0.4 |
Team | Mar 2026 | 1/1 | #406 | 2559 | +7.8 |
Team | Mar 2026 | 1/1 | #274 | 2335 | +3.0 |
Team | Feb 2026 | 0.5/1 | #835 | 1806 | -0.8 |
Team | Jan 2026 | 0.5/1 | #555 | 1759 | -4.4 |
Team | Oct 2025 | 0.5/1 | #54 | 1909 | 0.0 |
Rankings
/
Switzerland
#1,056
out of 3,528 players
Europe
#43,543
in continent
World
#59,453
out of 400,000+
National ranking
Europe & World
Europe
World
Switzerland
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| ... | ||
| 1056 | 1,857 | |
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 |
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| 10 | 🇹🇷Follow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more. | 2,713 |
| ... | ||
| 43543 | 1,857 | |
World
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| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 8 | 🇮🇳Follow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more. | 2,761 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
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| ... | ||
| 59453 | 1,857 | |