Format
KS
Kazantzoglou, Stefanos
FM🇬🇷FIDE 25865099· Male· Greece· Born in 2009
Follow Stefanos KazantzoglouTrack his monthly FIDE ratings, games, tournaments and more.
Stefanos Kazantzoglou, a 17-year-old Greek FIDE Master, is rated 2312 and ranked 2nd among Greek players under 18, and in the top 2% worldwide. He has fluctuated between 2085 and 2353 over the past 2 years. 122 rated games in the past year (≈82/year long-term). Recent standard appearances include First Saturday 2026 April - GM, 2026 Team Friendship Cup N. Strofalis Rounds 6-7, and 9th International Chess Open Tournament Vardaris 2026 A. Also played 13 rapid (including 2026 New Year's Eve Chess Marathon Rapid YES to CHESS) and 14 blitz events (including SERBIA OPEN 2025 - Qualifying blitz 4) recently. His peak of 2353 was reached at age 17 (Jan 2026, Greek #38 at the time).
Awarded FM in 2025 (age 16) and CM in 2024 (age 15). At junior level, he reached #2, #2, #1, #3, #3 and #1 nationally in U18, U16, U14, U12, U10 and U8.
Current rating
2312
Standard
Rpd2251·Blz2180
All-time high
2353
−41 pts below
Jan 2026 · age 17
Jan 2026 · age 17
Activity
96
games / yr avg. · ≈8/mo
122 past 12 mo · ≈10/mo
classical only
Very active
classical only
Very active
Signature stat
#2
#2 · Greek players under 18 · of 213
Career timeline
20 entries2026
2nd Greek U18 player
at age 17 · rated 2353
Feb 2026
Peak Greek rank: #38
at age 17 · rated 2353
Jan 2026
Crossed 2300
at age 17
Jan 2026
All-time peak 2353
at age 17 · −41 from today
Jan 2026
K-factor lowered to 20
at age 17
Jan 2026
2025
Re-crossed 2200
at age 16
Oct 2025
Standard rating history
Activity & highlights
Evolution
+38
2274 → 2312
Tournaments
16
112 games
Score
74/ 11266.1%
58W32D22L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
7 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Round-Robin | Apr 2026 | 4/10 | #6 | 2323 | +3.2 |
Open Swiss | Mar 2026 | 0/1 | #123 | — | -12.8 |
Open Swiss | Feb 2026 | 5/7 | #13 | 2217 | -18.2 |
Open Swiss | Jan 2026 | 2.5/4 | #24 | — | -12.8 |
Swiss | Jan 2026 | 7.5/9 | #1 | 2338 | -0.4 |
Swiss | Dec 2025 | 5/6 | #2 | 2151 | +4.4 |
Team | Nov 2025 | 5.5/6 | #3 | 2417 | +52.4 |
Worst Elo result: 9th International Chess Open Tournament Vardaris 2026 A (-18.2 Elo, finished #13).
Most-Played Opponents
vsNikolaos Kazantzoglou
🇬🇷GRE·1674
+32 −6 =3
41 games·last met Mar 2025
View head-to-head →
vsDimitrios Kassios
🇬🇷GRE·2169
+7 −13 =4
24 games·last met Mar 2026
View head-to-head →
vsAnastasios GeorgiadisFM
🇬🇷GRE·2306
+7 −6 =10
23 games·last met May 2026
View head-to-head →
vsEvangelos Koulouris
🇬🇷GRE·2122
+5 −12 =2
19 games·last met Sep 2025
View head-to-head →
vsIoannis ErgazakisFM
🇬🇷GRE·2229
+5 −10 =3
18 games·last met Dec 2025
View head-to-head →
Rankings
/
Greece
#48
out of 3,641 players
Europe
#2,445
in continent
World
#3,716
out of 400,000+
National ranking
Europe & World
Europe
World
Greece
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| ... | ||
| 48 | 2,312 | |
Europe
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| ... | ||
| 2445 | 2,312 | |
World
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| 6 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 7 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
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| ... | ||
| 3716 | 2,312 | |