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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 1610 — just 25 short of his peak of 1635 (Apr 2026, age 12). He is currently in the 1600–1650 range. 19 rated games in the past year. Recent standard appearances include Fridrikssyrpa IIII 2025-26, Icelandic Team Chess Championship 2025-26 - 4th league Rounds 5-7, and Fridrikssyrpa III 2026. Also played 5 rapid (including Islandsmot barna og unglingasveita Opinn flokkur) and 3 blitz events (including Hradskakmot taflfelaga 2026) recently.

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

Current rating

1610

Standard

Rpd1585·Blz1792

All-time high

1635

−25 pts below
Apr 2026 · age 12

Activity

46

games / yr avg. · ≈4/mo

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

Signature stat

#142,583

#142,583 · players worldwide · of 216,808

Career timeline

6 entries
2026
4th Icelandic U12 player
at age 12 · rated 1635
Apr 2026
All-time peak 1635
at age 12 · −25 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

Last 12 months — 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
4
17 games
Score
11.5/ 1767.6%
10W3D4L
Top 3 losses
1.[L]vsRobert Heidar Skulason1,435·Fridrikssyrpa III 2026·R6·-30.1
2.[L]vsAnh Hai Tran1,683·Fridrikssyrpa III 2026·R1·-16.9
3.[L]vsAnh Hai Tran1,706·Fridrikssyrpa IIII 2025-26·R4·-14.6

Last 12 months — tournaments

4 events
EventDateScoreRankPerfΔ Elo
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: Fridrikssyrpa IIII 2025-26 (-22.0 Elo, finished #12).

Rankings

/
Iceland
#363
out of 617 players
Europe
#95,927
in continent
World
#142,573
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.
2,534
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.
2,466
3
🇮🇸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.
2,439
6
🇮🇸Gretarsson, Helgi AssFollow Helgi Ass GretarssonTrack their monthly FIDE ratings, games, tournaments and more.
2,420
7
🇮🇸Gunnarsson, Jon ViktorFollow Jon Viktor GunnarssonTrack their monthly FIDE ratings, games, tournaments and more.
2,414
8
🇮🇸Stefansson, HannesFollow Hannes StefanssonTrack their monthly FIDE ratings, games, tournaments and more.
2,409
9
🇮🇸Arnason, Jon LFollow Jon L ArnasonTrack their monthly FIDE ratings, games, tournaments and more.
2,407
10
🇮🇸Kjartansson, GudmundurFollow Gudmundur KjartanssonTrack their monthly FIDE ratings, games, tournaments and more.
2,399
...
363🇮🇸Dadason, Jonatan Leo1,610
Europe
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,840
2
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,767
3
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,759
3
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,759
5
🇵🇱Duda, Jan-KrzysztofFollow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more.
2,739
6
🇳🇱Van Foreest, JordenFollow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more.
2,735
7
🇭🇺Rapport, RichardFollow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more.
2,729
8
🇫🇷Vachier-Lagrave, MaximeFollow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more.
2,717
8
🇦🇿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.
2,708
...
95927🇮🇸Dadason, Jonatan Leo1,610
World
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,840
2
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
3
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,788
4
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,780
5
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,776
6
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,767
7
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,759
7
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,759
9
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,754
10
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
...
142573🇮🇸Dadason, Jonatan Leo1,610