Deuer, Marius
GM🇩🇪FIDE 16236432· Male· Germany· Born in 2008
Marius Deuer, a 18-year-old German Grandmaster, is rated 2490 — just 17 short of his peak of 2507 (Dec 2024, age 16) and ranked 2nd among German players under 18, and in the top 1% worldwide. He has fluctuated between 2452 and 2507 over the past 2 years. 93 rated games in the past year (≈91/year long-term). Recent standard appearances include 2. Schachbundesliga 2025-2026 Stichkampf Aufstieg, 2. Bundesliga Sued 2025-2026 Maerz 2026, and Int. Graz Open 2026 - A. Also played 2 rapid (including Grand Prix PlusCity - Rapid Tournament 2025) and 2 blitz events (including Grand Prix PlusCity - Blitz Tournament 2025) recently. He reached German #29 in Dec 2024.
Awarded GM in 2026 (age 18), IM in 2023 (age 15), and FM in 2021 (age 13). At junior level, he reached World #6 in U18, World #5 in U16, World #12 in U14, World #9 in U12 and World #24 in U10.
Current rating
2490
Standard
All-time high
2507
Dec 2024 · age 16
Activity
119
games / yr avg. · ≈10/mo
classical only
Very active
Signature stat
#2
Career timeline
19 entriesStandard rating history
Activity & highlights
Last 12 months — tournaments
13 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 0/1 | #14 | 1743 | -4.2 |
Team | Mar 2026 | 0.5/1 | #56 | 2606 | +1.6 |
Open Swiss | Feb 2026 | 5.5/9 | #47 | 2351 | -15.7 |
Team | Feb 2026 | 3/4 | #4 | 2640 | +7.0 |
Team | Jan 2026 | 1/2 | #55 | 2486 | -0.2 |
Open Swiss | Dec 2025 | 6.5/9 | #4 | 2524 | +9.0 |
Open Swiss | Nov 2025 | 7/10 | #8 | 2609 | +18.4 |
Open Swiss | Oct 2025 | 7/11 | #18 | 2386 | -12.0 |
Team | Sep 2025 | 1.5/2 | #30 | 2690 | +5.5 |
Round-Robin | Aug 2025 | 5/9 | #5 | 2424 | -6.4 |
Rankings
National ranking
Europe & World
| 1 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 2 | 🇩🇪Follow Matthias BluebaumTrack their monthly FIDE ratings, games, tournaments and more. | 2,694 |
| 3 | 🇩🇪Follow Alexander DonchenkoTrack their monthly FIDE ratings, games, tournaments and more. | 2,645 |
| 3 | 🇩🇪Follow Frederik SvaneTrack their monthly FIDE ratings, games, tournaments and more. | 2,645 |
| 5 | 🇩🇪Follow Dmitrij KollarsTrack their monthly FIDE ratings, games, tournaments and more. | 2,635 |
| 6 | 🇩🇪Follow Rasmus SvaneTrack their monthly FIDE ratings, games, tournaments and more. | 2,620 |
| 7 | 🇩🇪Follow Luis EngelTrack their monthly FIDE ratings, games, tournaments and more. | 2,593 |
| 8 | 🇩🇪Follow Fabian DoettlingTrack their monthly FIDE ratings, games, tournaments and more. | 2,592 |
| 9 | 🇩🇪Follow Dennis WagnerTrack their monthly FIDE ratings, games, tournaments and more. | 2,591 |
| 10 | 🇩🇪Follow Arik BraunTrack their monthly FIDE ratings, games, tournaments and more. | 2,587 |
| ... | ||
| 33 | 2,490 | |
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,840 |
| 2 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 3 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 3 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 5 | 🇵🇱Follow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more. | 2,739 |
| 6 | 🇳🇱Follow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more. | 2,735 |
| 7 | 🇭🇺Follow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more. | 2,729 |
| 8 | 🇫🇷Follow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more. | 2,717 |
| 8 | 🇦🇿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. | 2,708 |
| ... | ||
| 387 | 2,490 | |
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,840 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 3 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,788 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,780 |
| 5 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,776 |
| 6 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 7 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
| 10 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 663 | 2,490 | |