Format
DM
Diamantopoulos, Marios
🇬🇷FIDE 42145503· Male· Greece· Born in 2014
Follow Marios DiamantopoulosTrack his monthly FIDE ratings, games, tournaments and more.
Marios Diamantopoulos, a 12-year-old Greek player, is rated 1531 — just 19 short of his peak of 1550 (Feb 2026, age 12). He is climbing fast, having gained +114 Elo over the past 12 months. 25 rated games in the past year (≈12/year long-term). Recent standard appearances include 2026 Team Championship of ESSTH-CHALK - Local, 2026 youth U8 - 16 championships of ESSTH-CHALK - open U12, and XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa G U12. Also played 8 rapid (including 19th open National Rapid Championship 2025) and 3 blitz events (including 11th open National Blitz Championship 2025) recently.
At junior level, he reached #44 and #40 nationally in U12 and U10.
Current rating
1531
Standard
Rpd1432·Blz1529
All-time high
1550
−19 pts below
Feb 2026 · age 12
Feb 2026 · age 12
Activity
15
games / yr avg. · ≈1/mo
25 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#173,630
#173,630 · players worldwide · of 218,279
Career timeline
9 entries2026
44th Greek U12 player
at age 12 · rated 1550
Feb 2026
All-time peak 1550
at age 12 · −19 from today
Feb 2026
Re-crossed 1500
at age 12
Jan 2026
2025
Best 12-month gain (+127 Elo)
1404 → 1531
Oct 2025
Crossed 1500
at age 11
Aug 2025
2024
40th Greek U10 player
at age 10 · rated 1477
Jun 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Best result
XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa G U12perf 1623 (+120) · 3/5 · #27
Top opponent
Evolution
—
Tournaments
6
38 games
Score
21/ 3855.3%
17W8D13L
Top 3 wins
3.[W]vsAneesh Bhattacharyya1,502·XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa G U12·R6·+19.9
Top 3 losses
Last 12 months — tournaments
6 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Jan 2026 | 3.5/2 | #49 | 2216 | -9.2 |
Swiss | Jan 2026 | 5/3 | #10 | 2417 | +36.8 |
Open Swiss | Dec 2025 | 3/5 | #27 | 1623 | +18.0 |
Team | Nov 2025 | 3/4 | #44 | 1722 | -47.6 |
Team | Sep 2025 | 2.5/3 | #83 | 1878 | -13.6 |
Swiss | Jul 2025 | 4/8 | #31 | 1486 | 0.0 |
Most-Played Opponents
vsDionysios Eleftherios Skodras
🇬🇷GRE·1639
+2 −8 =4
14 games·last met Jan 2026
View head-to-head →
vsApostolos Kostoglou
🇬🇷GRE·1730
+3 −5 =0
8 games·last met Jun 2025
View head-to-head →
vsIoannis Bimpikas
🇬🇷GRE·1665
+2 −4 =1
7 games·last met Jan 2026
View head-to-head →
vsIraklis Mekolli
🇬🇷GRE·1612
+0 −5 =1
6 games·last met Jan 2026
View head-to-head →
vsVenizelos Alexandrakis
🇬🇷GRE·1795
+1 −4 =1
6 games·last met Dec 2025
View head-to-head →
Rankings
/
Greece
#2,310
out of 3,681 players
Europe
#111,633
in continent
World
#173,596
out of 400,000+
National ranking
Europe & World
Europe
World
Greece
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Europe
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World
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