Format
DC
Diaconu, Costin-Silviu
🇷🇴FIDE 42225035· Male· Romania· Born in 2012
Follow Costin-Silviu DiaconuTrack his monthly FIDE ratings, games, tournaments and more.
Costin-Silviu Diaconu, a 14-year-old Romanian player, is rated 1562 — just 24 short of his peak of 1586 (Jan 2026, age 14). He plays occasionally (9 games in the last 12 months). Recent appearances: National School Contest "Elisabeta Polihroniade" 2026 Open 15 and Gerard Cup - 6th ed.. Also played 1 rapid (including Summer Cup Pitesti - rapid open) and 1 blitz events (including Summer Cup Pitesti - blitz open) recently.
At junior level, he reached #85 nationally in U14.
Current rating
1562
Standard
Rpd1448·Blz1544
All-time high
1586
−24 pts below
Jan 2026 · age 14
Jan 2026 · age 14
Activity
7
games / yr avg. · ≈1/mo
9 past 12 mo · ≈1/mo
classical only
Occasional
classical only
Occasional
Signature stat
#161,641
#161,641 · players worldwide · of 218,279
Career timeline
6 entries2026
85th Romanian U14 player
at age 14 · rated 1586
Jan 2026
All-time peak 1586
at age 14 · −24 from today
Jan 2026
2025
Crossed 1500
at age 13
Feb 2025
Crossed 1400
at age 13
Feb 2025
Crossed 1200
at age 13
Feb 2025
First FIDE rating
1560 · at age 13
Feb 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Top opponent
Evolution
+2
1560 → 1562
Tournaments
2
17 games
Score
6/ 1735.3%
9W0D8L
Top 3 wins
Top 3 losses
2.[L]vsAristotelis Athyridis1,611·National School Contest "Elisabeta Polihroniade" 2026 Open 15·R3·-17.3
Last 12 months — tournaments
2 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Jan 2026 | 3/6 | #17 | 1638 | -23.6 |
Swiss | Dec 2025 | 3/3 | #10 | 2404 | +27.2 |
Worst Elo result: National School Contest "Elisabeta Polihroniade" 2026 Open 15 (-23.6 Elo, finished #17).
Rankings
/
Romania
#1,476
out of 2,776 players
Europe
#105,899
in continent
World
#161,624
out of 400,000+
National ranking
Europe & World
Europe
World
Romania
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Europe
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World
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