Format
WJ
Westerberg, Jonathan
GM🇸🇪FIDE 1701754· Male· Sweden· Born in 1994
Follow Jonathan WesterbergTrack his monthly FIDE ratings, games, tournaments and more.
Jonathan Westerberg, a 32-year-old Swedish Grandmaster, is rated 2452 and ranked 11th among Swedish players, and in the top 1% worldwide. He has held steady between 2450 and 2500 for 4 years. 20 rated games in the past year (≈59/year long-term). Recent standard appearances include Allsvenskan 2025-2026 Elitserien r7-9, Sthlm Lag-DM 2025-2026 div Elit r3, and Salongernas Chess Challenge 2025. Also played 2 rapid events (including Sallskapets hostsnabb 2025) recently. His peak of 2557 was reached at age 25 (Nov 2019, World #409 at the time); he spent 73 months in Swedish top 10, with a longest streak of 3 consecutive years.
Awarded GM in 2021 (age 27), IM in 2014 (age 20), and FM in 2011 (age 17). At junior level, he reached World #64 in U20 and #1, #1 and #1 nationally in U18, U16 and U14.
Current rating
2452
Standard
Rpd2426·Blz2462
All-time high
2557
−105 pts below
Nov 2019 · age 25
Nov 2019 · age 25
Activity
14
games / yr avg. · ≈1/mo
20 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#11
#11 · Swedish players · of 2,913
73 months in National top 10 (2015–2026)
73 months in National top 10 (2015–2026)
Career timeline
23 entries2026
73 months in national top 10
longest streak 47 months · since Nov 2015
Mar 2026
2021
Re-crossed 2500
at age 27
Dec 2021
1,000 career games
at age 27
Dec 2021
GM title awardedGM
at age 27 · 2021 1st FIDE Council
May 2021
2019
Peak World rank: #409
at age 25 · rated 2557
Nov 2019
All-time peak 2557
at age 25 · −105 from today
Nov 2019
Standard rating history
Activity & highlights
Evolution
-26
2478 → 2452
Tournaments
6
20 games
Score
12/ 2060.0%
11W2D7L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
6 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 0.5/3 | #78 | 2120 | -13.2 |
Team | Jan 2026 | 1/3 | #57 | 2319 | -6.2 |
Team | Nov 2025 | 2/3 | #30 | 2569 | +3.9 |
Team | Nov 2025 | 0/1 | #70 | 1492 | -7.5 |
Team | Sep 2025 | 0.5/1 | #47 | 2462 | +0.2 |
Swiss | May 2025 | 8/9 | #1 | 2226 | -2.8 |
Most-Played Opponents
vsErik BlomqvistGM
🇸🇪SWE·2472
+4 −11 =11
26 games·last met Sep 2025
View head-to-head →
vsHarald LogdahlFM
🇸🇪SWE·2198
+12 −4 =6
22 games·last met Sep 2025
View head-to-head →
vsChristopher LissangFM
🇸🇪SWE·2314
+14 −4 =2
20 games·last met Oct 2019
View head-to-head →
vsTom RydstromFM
🇸🇪SWE·2311
+13 −1 =4
18 games·last met Nov 2019
View head-to-head →
vsRalf AkessonGM
🇸🇪SWE·2316
+8 −2 =7
17 games·last met Mar 2024
View head-to-head →
Rankings
/
Sweden
#11
out of 3,413 players
Europe
#596
in continent
World
#992
out of 400,000+
National ranking
Europe & World
Europe
World
Sweden
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Europe
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World
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