Format
WW
Walgren, William Arntzen
🇳🇴FIDE 1562088· Male· Norway· Born in 2010
Follow William Arntzen WalgrenTrack his monthly FIDE ratings, games, tournaments and more.
William Arntzen Walgren, a 16-year-old Norwegian player, is rated 2167 — his current career high and sitting in the top 2% of players worldwide under 16, and in the top 5% worldwide. He is on a steady climb with +45 Elo over the past 12 months. 57 rated games in the past year (≈45/year long-term). Recent standard appearances include Eliteserie kvalifisering 2026, Ostlandsserien div 1 2025-2026 R 8-9, and NM for barne og ungdomslag 2026 Junior. Also played 3 rapid (including NTG Hurtig-GP juni 2025) and 6 blitz events (including NTG Lyn-GP desember 2025) recently.
At junior level, he reached #7, #4, #6 and #4 nationally in U16, U14, U12 and U10.
Current rating
2167
Standard
Rpd2017·Blz2086
All-time high
2167
at best
Jun 2026 · age 16
Jun 2026 · age 16
Activity
51
games / yr avg. · ≈4/mo
57 past 12 mo · ≈5/mo
classical only
Active
classical only
Active
Signature stat
Top 2%
#402 · players worldwide under 16 · of 20,363
Career timeline
12 entries2026
All-time peak 2167
at age 16
Jun 2026
Re-crossed 2100
at age 16
May 2026
2025
7th Norwegian U16 player
at age 15 · rated 2122
May 2025
Crossed 2100
at age 15
May 2025
Crossed 2000
at age 15
Jan 2025
2024
4th Norwegian U14 player
at age 14 · rated 1947
May 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
COVID-19
FIDE recal.
Activity & highlights
Evolution
+61
2106 → 2167
Tournaments
12
54 games
Score
33.5/ 5462.0%
27W13D14L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
11 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | May 2026 | 5/6 | #7 | 2193 | +24.4 |
Swiss | Apr 2026 | 3/3 | #2 | 2828 | +50.4 |
Team | Mar 2026 | 0/2 | #55 | 1652 | -14.0 |
Team | Feb 2026 | 5.5/6 | #2 | 2237 | +33.6 |
Team | Feb 2026 | 0.5/2 | #41 | 2038 | -2.4 |
Team | Jan 2026 | 1.5/2 | #11 | 2441 | +42.4 |
Team | Dec 2025 | 0/1 | #47 | 1309 | -17.6 |
Swiss | Nov 2025 | 3/5 | #17 | 2081 | +17.6 |
Team | Nov 2025 | 0.5/1 | #34 | 2234 | +10.8 |
Open Swiss | Oct 2025 | 5/10 | #106 | 2075 | -69.2 |
Most-Played Opponents
vsAnto Suprianto
🇳🇴NOR·1608
+17 −9 =2
28 games·last met Sep 2025
View head-to-head →
vsGisle Bjugn
🇳🇴NOR·1922
+10 −9 =4
23 games·last met May 2026
View head-to-head →
vsHallvard Foss Bjornstad
🇳🇴NOR·2065
+9 −7 =5
21 games·last met Apr 2025
View head-to-head →
vsFredrik Lexow Bjorge
🇳🇴NOR·1824
+12 −2 =4
18 games·last met Oct 2025
View head-to-head →
vsEmilian Loeve Brandsdal Bjugn
🇳🇴NOR·1833
+11 −4 =2
17 games·last met Jan 2026
View head-to-head →
Rankings
/
Norway
#117
out of 2,669 players
Europe
#7,193
in continent
World
#10,113
out of 400,000+
National ranking
Europe & World
Europe
World
Norway
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇳🇴Follow Johan-Sebastian ChristiansenTrack their monthly FIDE ratings, games, tournaments and more. | 2,647 |
| 3 | 🇳🇴Follow Aryan TariTrack their monthly FIDE ratings, games, tournaments and more. | 2,641 |
| 4 | 🇳🇴Follow Elham AmarTrack their monthly FIDE ratings, games, tournaments and more. | 2,584 |
| 5 | 🇳🇴Follow Jon Ludvig HammerTrack their monthly FIDE ratings, games, tournaments and more. | 2,574 |
| 6 | 🇳🇴Follow Frode Olav Olsen UrkedalTrack their monthly FIDE ratings, games, tournaments and more. | 2,566 |
| 7 | 🇳🇴Follow Simen AgdesteinTrack their monthly FIDE ratings, games, tournaments and more. | 2,525 |
| 8 | 🇳🇴Follow Kristian Stuvik HolmTrack their monthly FIDE ratings, games, tournaments and more. | 2,497 |
| 9 | 🇳🇴Follow Jesper HallTrack their monthly FIDE ratings, games, tournaments and more. | 2,494 |
| 10 | 🇳🇴Follow Geir Sune Tallaksen OstmoeTrack their monthly FIDE ratings, games, tournaments and more. | 2,488 |
| ... | ||
| 117 | 2,167 | |
Europe
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 3 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 4 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,744 |
| 5 | 🇵🇱Follow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more. | 2,739 |
| 6 | 🇭🇺Follow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more. | 2,729 |
| 7 | 🇳🇱Follow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more. | 2,728 |
| 8 | 🇫🇷Follow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more. | 2,721 |
| 9 | 🇦🇿Follow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,717 |
| 10 | 🇹🇷Follow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more. | 2,713 |
| ... | ||
| 7193 | 2,167 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 2 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 4 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 6 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 8 | 🇮🇳Follow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more. | 2,761 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 9 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 10113 | 2,167 | |