Format
BS
Bastien, Sidan
🇧🇪FIDE 259292· Male· Belgium· Born in 2007
Follow Sidan BastienTrack his monthly FIDE ratings, games, tournaments and more.
Sidan Bastien, a 19-year-old Belgian player, is rated 1701. He has slipped back 97 Elo over the past 12 months. 19 rated games in the past year (≈16/year long-term). Recent standard appearances include Belgian Interclubs Round 2025-2026 Ronde 9, 21eme Festival International de Dieppe A - Grand Prix Duchesse de Berry, and Brugse Meesters 2025 Open. His peak of 1802 was reached at age 18 (Feb 2025).
At junior level, he reached #72, #33, #44, #42 and #43 nationally in U20, U18, U16, U14 and U12.
Current rating
1701
Standard
Rpd—·Blz—
All-time high
1802
−101 pts below
Feb 2025 · age 18
Feb 2025 · age 18
Activity
22
games / yr avg. · ≈2/mo
19 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#109,326
#109,326 · players worldwide · of 216,808
Career timeline
14 entries2026
72nd Belgian U20 player
at age 19 · rated 1701
May 2026
K-factor lowered to 20
at age 19
Jan 2026
2025
100 career games
at age 18
Sep 2025
33rd Belgian U18 player
at age 18 · rated 1802
Feb 2025
Best 12-month gain (+422 Elo)
1380 → 1802
Feb 2025
Crossed 1800
at age 18
Feb 2025
Standard rating history
Last 12 months — activity & highlights
Evolution
-97
1798 → 1701
Tournaments
3
20 games
Score
7/ 2035.0%
6W4D10L
Top 3 wins
3.[W]vsTya Loppin1,632·21eme Festival International de Dieppe A - Grand Prix Duchesse de Berry·R2·+16.1
Top 3 losses
1.[L]vsZoubayer Ben Kacem1,644·21eme Festival International de Dieppe A - Grand Prix Duchesse de Berry·R7·-23.3
3.[L]vsJose Anton1,826·21eme Festival International de Dieppe A - Grand Prix Duchesse de Berry·R9·-13.1
Last 12 months — tournaments
3 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Mar 2026 | 0.5/1 | #808 | 1703 | 0.0 |
Open Swiss | Aug 2025 | 3.5/9 | #127 | 1677 | -60.0 |
Open Swiss | Aug 2025 | 3/9 | #172 | 1730 | -36.8 |
Worst Elo result: 21eme Festival International de Dieppe A - Grand Prix Duchesse de Berry (-60.0 Elo, finished #127).
Rankings
/
Belgium
#1,764
out of 3,309 players
Europe
#76,747
in continent
World
#109,324
out of 400,000+
National ranking
Europe & World
Europe
World
Belgium
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| ... | ||
| 1764 | 1,701 | |
Europe
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| ... | ||
| 76747 | 1,701 | |
World
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| 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 |
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| ... | ||
| 109324 | 1,701 | |