Format
CT
Claessens, Thias
🇧🇪FIDE 295310· Male· Belgium· Born in 2014
Follow Thias ClaessensTrack his monthly FIDE ratings, games, tournaments and more.
Thias Claessens, a 12-year-old Belgian player, is rated 1561 — just 2 short of his peak of 1563 (Feb 2026, age 12). He plays occasionally (6 games in the last 12 months). Recent standard appearances include Belgian Interclubs Round 2025-2026 Ronde 9, Belgian Interclubs Round 2025-2026 Ronde 8, and Belgian Interclubs Round 2025-2026 Ronde 7. Also played 2 blitz events (including BK Blitz 2025) recently.
At junior level, he reached #19 nationally in U12.
Current rating
1561
Standard
Rpd—·Blz1602
All-time high
1563
−2 pts below
Feb 2026 · age 12
Feb 2026 · age 12
Activity
10
games / yr avg. · ≈1/mo
6 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#162,024
#162,024 · players worldwide · of 218,279
Career timeline
7 entries2026
19th Belgian U12 player
at age 12 · rated 1563
Feb 2026
Best 12-month gain (+55 Elo)
1508 → 1563
Feb 2026
All-time peak 1563
at age 12 · −2 from today
Feb 2026
2025
Crossed 1500
at age 11
May 2025
Crossed 1400
at age 11
May 2025
Crossed 1200
at age 11
May 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Evolution
+53
1508 → 1561
Tournaments
6
11 games
Score
4/ 1136.4%
8W1D2L
Top 3 wins
Top 2 losses
Last 12 months — tournaments
6 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 0/1 | #1352 | 830 | -15.6 |
Team | Mar 2026 | 1/1 | #462 | 2418 | +23.6 |
Team | Feb 2026 | 0/1 | #1215 | 953 | -10.0 |
Team | Jan 2026 | 1/1 | #282 | 2252 | +15.2 |
Team | Nov 2025 | 1/1 | #33 | 2203 | +12.8 |
Team | Sep 2025 | 1/1 | #422 | 2214 | +14.0 |
Rankings
/
Belgium
#2,534
out of 3,338 players
Europe
#106,090
in continent
World
#162,007
out of 400,000+
National ranking
Europe & World
Europe
World
Belgium
| 1 | 🇧🇪Follow Daniel DardhaTrack their monthly FIDE ratings, games, tournaments and more. | 2,587 |
| 2 | 🇧🇪Follow Mikhail GurevichTrack their monthly FIDE ratings, games, tournaments and more. | 2,554 |
| 3 | 🇧🇪Follow Tanguy RingoirTrack their monthly FIDE ratings, games, tournaments and more. | 2,529 |
| 4 | 🇧🇪Follow Sim MaerevoetTrack their monthly FIDE ratings, games, tournaments and more. | 2,471 |
| 5 | 🇧🇪Follow Elias RuzhanskyTrack their monthly FIDE ratings, games, tournaments and more. | 2,442 |
| 6 | 🇧🇪Follow Igor GlekTrack their monthly FIDE ratings, games, tournaments and more. | 2,413 |
| 7 | 🇧🇪Follow Maxime HauchampsTrack their monthly FIDE ratings, games, tournaments and more. | 2,408 |
| 8 | 🇧🇪Follow Steven GeirnaertTrack their monthly FIDE ratings, games, tournaments and more. | 2,406 |
| 9 | 🇧🇪Follow Todor TodorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,402 |
| 10 | 🇧🇪Follow Thibaut VandenbusscheTrack their monthly FIDE ratings, games, tournaments and more. | 2,397 |
| ... | ||
| 2534 | 1,561 | |
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 |
| ... | ||
| 106090 | 1,561 | |
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 |
| ... | ||
| 162007 | 1,561 | |