Format
JK
Jacobsen, Knud Mogens
🇩🇰FIDE 1421069· Male· Denmark· Born in 1938
Follow Knud Mogens JacobsenTrack his monthly FIDE ratings, games, tournaments and more.
Knud Mogens Jacobsen, a 88-year-old Danish player, is rated 1643 — just 8 short of his peak of 1651 (Jan 2026, age 88). He has fluctuated between 1597 and 1651 over the past 2 years. 20 rated games in the past year (≈18/year long-term). Recent standard appearances include Skanderborg Skakklub Aabne Bymesterskab 2026 Round 5-7, 6HK Team 2025-26 Feb, and Skanderborg Skakklub Aabne Bymesterskab 2026 Round 1-4.
Current rating
1643
Standard
Rpd1719·Blz—
All-time high
1651
−8 pts below
Jan 2026 · age 88
Jan 2026 · age 88
Activity
20
games / yr avg. · ≈2/mo
17 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#130,811
#130,811 · players worldwide · of 218,279
Career timeline
15 entries2026
All-time peak 1651
at age 88 · −8 from today
Jan 2026
2025
Best 12-month gain (+254 Elo)
1374 → 1628
Jan 2025
2024
Re-crossed 1600
at age 86
Oct 2024
Crossed 1600
at age 86
Mar 2024
Re-crossed 1500
at age 86
Mar 2024
Re-crossed 1400
at age 86
Mar 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
COVID-19
FIDE recal.
Activity & highlights
Top opponent
Evolution
+22
1621 → 1643
Tournaments
9
18 games
Score
12.5/ 1869.4%
11W3D4L
Top 3 wins
Top 2 losses
Last 12 months — tournaments
9 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Mar 2026 | 1.5/2 | #18 | 1806 | -8.0 |
Team | Feb 2026 | 1/1 | #49 | 2409 | +8.8 |
Swiss | Jan 2026 | 2/3 | #20 | 1802 | -8.6 |
Team | Jan 2026 | 1/2 | #48 | 1518 | +0.4 |
Team | Dec 2025 | 1/1 | #18 | — | +11.0 |
Round-Robin | Nov 2025 | 0.5/1 | #4 | 1511 | -5.4 |
Team | Nov 2025 | 0.5/1 | #90 | 1520 | -3.4 |
Round-Robin | Sep 2025 | 3/2 | #2 | 2133 | +13.0 |
Round-Robin | Sep 2025 | 2/2 | #1 | 2325 | +14.8 |
Most-Played Opponents
vsVibeke Grue
🇩🇰DEN·1615
+8 −1 =1
10 games·last met Mar 2026
View head-to-head →
vsAage Andersen
🇩🇰DEN·1618
+5 −3 =2
10 games·last met Oct 2020
View head-to-head →
vsTorben Gregersen
🇩🇰DEN·1735
+1 −4 =3
8 games·last met Mar 2026
View head-to-head →
vsHolger Heiredal
🇩🇰DEN
+8 −0 =0
8 games·last met Nov 2025
View head-to-head →
vsHugo Aage Schacht
🇩🇰DEN·1532
+4 −1 =3
8 games·last met Oct 2025
View head-to-head →
Rankings
/
Denmark
#2,137
out of 2,627 players
Europe
#89,457
in continent
World
#130,805
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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| 10 | 🇩🇰Follow Filip Boe OlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,475 |
| ... | ||
| 2137 | 1,643 | |
Europe
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| 2 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
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| 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 |
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| ... | ||
| 89457 | 1,643 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
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| 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 |
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| ... | ||
| 130805 | 1,643 | |