Format
FK
Fonss, Knud Aage
🇩🇰FIDE 1423355· Male· Denmark· Born in 1948
Follow Knud Aage FonssTrack his monthly FIDE ratings, games, tournaments and more.
Knud Aage Fonss, a 78-year-old Danish player, is rated 1711 — just 12 short of his peak of 1723 (May 2025, age 77). He has held steady between 1700 and 1750 for 17 months. 25 rated games in the past year (≈21/year long-term). Recent standard appearances include Koge Bugt Foraar 2026 Round 1-4, Koge Bugt Vinter 2026 Round 4-7, and Koge Bugt Vinter 2026 Round 1-3.
Current rating
1711
Standard
Rpd—·Blz1794
All-time high
1723
−12 pts below
May 2025 · age 77
May 2025 · age 77
Activity
20
games / yr avg. · ≈2/mo
22 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#105,933
#105,933 · players worldwide · of 218,279
Career timeline
14 entries2025
All-time peak 1723
at age 77 · −12 from today
May 2025
Best 12-month gain (+203 Elo)
1499 → 1702
Feb 2025
2024
Re-crossed 1600
at age 76
Mar 2024
Re-crossed 1500
at age 76
Mar 2024
2020
Inactive for 13 months
paused at 1541 → returned at 1536
Apr 2020
2018
Re-crossed 1600
at age 70
Jan 2018
Standard rating history
Peak
FIDE title
Threshold
First rated
COVID-19
FIDE recal.
Activity & highlights
Evolution
-10
1721 → 1711
Tournaments
8
23 games
Score
11/ 2347.8%
8W6D9L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
8 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Apr 2026 | 0.5/2 | #12 | 1562 | -8.0 |
Swiss | Mar 2026 | 2/4 | #5 | 1728 | +1.6 |
Swiss | Feb 2026 | 2/3 | #12 | 2007 | +1.6 |
Swiss | Jan 2026 | 1/2 | #8 | 1634 | -4.6 |
Swiss | Nov 2025 | 1.5/2 | #7 | 1819 | +5.6 |
Swiss | Oct 2025 | 1/2 | #9 | 1638 | -3.4 |
Swiss | Oct 2025 | 0.5/1 | #11 | 1734 | +0.4 |
Swiss | Aug 2025 | 2.5/6 | #7 | 1699 | -4.4 |
Most-Played Opponents
vsCasper Christiansen
🇩🇰DEN·1582
+14 −2 =7
23 games·last met Apr 2026
View head-to-head →
vsJorgen Thinggaard
🇩🇰DEN·1548
+7 −1 =12
20 games·last met Feb 2026
View head-to-head →
vsKim Amdi Orup
🇩🇰DEN·1728
+4 −2 =11
17 games·last met Apr 2026
View head-to-head →
vsJorgen Rene Larsen
🇩🇰DEN·1759
+0 −9 =8
17 games·last met Apr 2026
View head-to-head →
vsHenning Forsmann
🇩🇰DEN·1793
+2 −8 =6
16 games·last met Apr 2026
View head-to-head →
Rankings
/
Denmark
#1,850
out of 2,627 players
Europe
#74,709
in continent
World
#105,930
out of 400,000+
National ranking
Europe & World
Europe
World
Denmark
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| 6 | 🇩🇰Follow Boris ChatalbashevTrack their monthly FIDE ratings, games, tournaments and more. | 2,520 |
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| 8 | 🇩🇰Follow Allan Stig RasmussenTrack their monthly FIDE ratings, games, tournaments and more. | 2,482 |
| 9 | 🇩🇰Follow Bjorn Moller OchsnerTrack their monthly FIDE ratings, games, tournaments and more. | 2,478 |
| 10 | 🇩🇰Follow Filip Boe OlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,475 |
| ... | ||
| 1850 | 1,711 | |
Europe
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| 2 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
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| ... | ||
| 74709 | 1,711 | |
World
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| 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 |
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| ... | ||
| 105930 | 1,711 | |