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Dadason, Jonatan Leo

🇮🇸

FIDEFIDE 2336308· Male· Iceland· Born in 2014

Follow Jonatan Leo DadasonTrack his monthly FIDE ratings, games, tournaments and more.

Jonatan Leo Dadason, a 12-year-old Icelandic player, is rated 1632 — just 3 short of his peak of 1635 (Apr 2026, age 12). He is currently in the 1600–1650 range. 23 rated games in the past year. Recent standard appearances include Fridrikssyrpa TR V 2025-26, Fridrikssyrpa IIII 2025-26, and Icelandic Team Chess Championship 2025-26 - 4th league Rounds 5-7. Also played 8 rapid (including Vormot Skakskola Islands 2026) and 4 blitz events (including Hradskakmot taflfelaga 2026) recently.

At junior level, he reached #4 nationally in U12.

Current rating

1632

Standard

Rpd1727·Blz1752

All-time high

1635

−3 pts below
Apr 2026 · age 12

Activity

46

games / yr avg. · ≈4/mo

23 past 12 mo · ≈2/mo
classical only
Active

Signature stat

#134,927

#134,927 · players worldwide · of 218,279

Career timeline

6 entries
2026
4th Icelandic U12 player
at age 12 · rated 1635
Apr 2026
All-time peak 1635
at age 12 · −3 from today
Apr 2026
Crossed 1600
at age 12
Mar 2026
Crossed 1500
at age 12
Mar 2026
Crossed 1400
at age 12
Mar 2026
First FIDE rating
1628 · at age 12
Mar 2026

Standard rating history

Peak
FIDE title
Threshold
First rated

Activity & highlights

Top opponent
vs Geir Rognvaldsson 1,655
Icelandic Team Chess Championship 2025-26 - 4th league Rounds 5-7 · Mar 2026 · +1.2 Elo
Evolution
—
Tournaments
6
30 games
Score
20.5/ 3068.3%
19W3D8L
Top 3 losses
1.[L]vsRobert Heidar Skulason1,435·Fridrikssyrpa III 2026·R6·-30.1
2.[L]vsJoel Helmer Tobiasson1,541·Fridrikssyrpa TR V 2025-26·R6·-25.1
3.[L]vsEidur Jokulsson1,550·Sumarsyrpa TR I 2026·R7·-24.6

Last 12 months — tournaments

6 events
EventDateScoreRankPerfΔ Elo
Sumarsyrpa TR I 2026
Swiss
Jun 20264/6#61668-26.8
Fridrikssyrpa TR V 2025-26
Open Swiss
May 20265/4#32329+22.0
Fridrikssyrpa IIII 2025-26
Swiss
Apr 20264.5/4#122424-22.0
Icelandic Team Chess Championship 2025-26 - 4th league Rounds 5-7
Team
Mar 20261.5/3#271552-14.0
Fridrikssyrpa III 2026
Swiss
Feb 20264/4#415210.0
Icelandic Team Chess Championship 2025-26 - 4th league Round 1-4
Team
Nov 20251.5/2#3015890.0
Worst Elo result: Sumarsyrpa TR I 2026 (-26.8 Elo, finished #6).

Rankings

/
Iceland
#356
out of 643 players
Europe
#91,726
in continent
World
#134,919
out of 400,000+

National ranking

Europe & World

Europe
World
Iceland
1
🇮🇸Stefansson, Vignir VatnarFollow Vignir Vatnar StefanssonTrack their monthly FIDE ratings, games, tournaments and more.
2,540
2
🇮🇸Steingrimsson, HedinnFollow Hedinn SteingrimssonTrack their monthly FIDE ratings, games, tournaments and more.
2,502
3
🇮🇸Hjartarson, JohannFollow Johann HjartarsonTrack their monthly FIDE ratings, games, tournaments and more.
2,467
4
🇮🇸Danielsen, HenrikFollow Henrik DanielsenTrack their monthly FIDE ratings, games, tournaments and more.
2,466
5
🇮🇸Olafsson, HelgiFollow Helgi OlafssonTrack their monthly FIDE ratings, games, tournaments and more.
2,447
6
🇮🇸Gretarsson, Helgi AssFollow Helgi Ass GretarssonTrack their monthly FIDE ratings, games, tournaments and more.
2,420
7
🇮🇸Stefansson, HannesFollow Hannes StefanssonTrack their monthly FIDE ratings, games, tournaments and more.
2,419
8
🇮🇸Gunnarsson, Jon ViktorFollow Jon Viktor GunnarssonTrack their monthly FIDE ratings, games, tournaments and more.
2,414
9
🇮🇸Thorsteins, KarlFollow Karl ThorsteinsTrack their monthly FIDE ratings, games, tournaments and more.
2,407
10
🇮🇸Arnason, Jon LFollow Jon L ArnasonTrack their monthly FIDE ratings, games, tournaments and more.
2,404
...
356🇮🇸Dadason, Jonatan Leo1,632
Europe
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,841
2
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,767
3
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,764
4
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,744
5
🇵🇱Duda, Jan-KrzysztofFollow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more.
2,739
6
🇭🇺Rapport, RichardFollow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more.
2,729
7
🇳🇱Van Foreest, JordenFollow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more.
2,728
8
🇫🇷Vachier-Lagrave, MaximeFollow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more.
2,721
9
🇦🇿Mamedyarov, ShakhriyarFollow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more.
2,717
10
🇹🇷Erdogmus, Yagiz KaanFollow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more.
2,713
...
91726🇮🇸Dadason, Jonatan Leo1,632
World
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,841
2
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
2
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,792
4
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
4
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
6
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,767
7
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,764
8
🇮🇳Erigaisi ArjunFollow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more.
2,761
9
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,753
9
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
...
134919🇮🇸Dadason, Jonatan Leo1,632