Format
MW
Mardh, William
🇸🇪FIDE 1792385· Male· Sweden· Born in 2013
Follow William MardhTrack his monthly FIDE ratings, games, tournaments and more.
William Mardh, a 13-year-old Swedish player, is rated 1787 — just 8 short of his peak of 1795 (Feb 2026, age 13). He is progressing steadily with +25 Elo over the past 12 months. 10 rated games in the past year (≈6/year long-term). Recent standard appearances include Stockholmsserien 2025-2026 div 5 r7, Allsvenskan 2025-2026: III:4 r2-3, and Lilla Stockohlm Grand Prix 2025 std. Also played 12 rapid (including sthlm Junior-Lag-DM 2026, Elitserien) and 1 blitz events (including Sthlm JDM Blixt 2025 Kl C) recently.
At junior level, he reached #17 and #7 nationally in U14 and U12.
Current rating
1787
Standard
Rpd1855·Blz1636
All-time high
1795
−8 pts below
Feb 2026 · age 13
Feb 2026 · age 13
Activity
6
games / yr avg. · ≈1/mo
10 past 12 mo · ≈1/mo
classical only
Occasional
classical only
Occasional
Signature stat
#80,438
#80,438 · players worldwide · of 218,279
Career timeline
8 entries2026
17th Swedish U14 player
at age 13 · rated 1795
Feb 2026
Best 12-month gain (+33 Elo)
1762 → 1795
Feb 2026
All-time peak 1795
at age 13 · −8 from today
Feb 2026
2025
7th Swedish U12 player
at age 12 · rated 1762
Dec 2025
Crossed 1600
at age 12
Dec 2025
Crossed 1500
at age 12
Dec 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Evolution
—
Tournaments
6
13 games
Score
9.5/ 1373.1%
9W3D1L
Top 3 wins
Top losses
No noteworthy losses.
Last 12 months — tournaments
6 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 0.5/1 | #12 | 1634 | -8.4 |
Team | Jan 2026 | 1/1 | #1 | 2519 | +16.0 |
Team | Dec 2025 | 1/1 | #3 | 2522 | +15.6 |
Open Swiss | Nov 2025 | 3/4 | #2 | 1613 | 0.0 |
Team | Oct 2025 | 1/1 | #1 | 1576 | 0.0 |
Open Swiss | Aug 2025 | 3/2 | #32 | 1648 | 0.0 |
Most-Played Opponents
vsBenjamin Lang Sohl
🇸🇪SWE·1707
+4 −2 =2
8 games·last met Nov 2025
View head-to-head →
vsAlvar Stal
🇸🇪SWE·1650
+5 −1 =0
6 games·last met May 2026
View head-to-head →
vsVille Modig
🇸🇪SWE·1682
+1 −4 =0
5 games·last met May 2026
View head-to-head →
vsEdvin Hognabba
🇸🇪SWE·1764
+0 −3 =2
5 games·last met Nov 2025
View head-to-head →
Rankings
/
Sweden
#1,544
out of 3,410 players
Europe
#58,041
in continent
World
#80,436
out of 400,000+
National ranking
Europe & World
Europe
World
Sweden
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| ... | ||
| 1544 | 1,787 | |
Europe
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| ... | ||
| 58041 | 1,787 | |
World
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| ... | ||
| 80436 | 1,787 | |