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Mercier, Theo

🇧🇪

FIDEFIDE 548002232· Male· Belgium· Born in 2001

Follow Theo MercierTrack his monthly FIDE ratings, games, tournaments and more.

Theo Mercier, a 25-year-old Belgian player, is rated 1555 — his current career high. He plays occasionally (8 games in the last 12 months). Recent standard appearances include Brussels Open Winter 2026 Rounds 7-10, Brussels Open Winter 2026 Rounds 1-4, and Brussels Open Fall 2025 Rounds 5-6. Also played 1 rapid (including Brussels Express 2025) and 2 blitz events (including Brussels Blitz Winter 2026) recently.

Current rating

1555

Standard

Rpd1559·Blz1601

All-time high

1555

at best
Apr 2026 · age 25

Activity

11

games / yr avg. · ≈1/mo

8 past 12 mo · ≈1/mo
classical only
Moderately active

Signature stat

#163,564

#163,564 · players worldwide · of 216,808

Career timeline

6 entries
2026
Best 12-month gain (+68 Elo)
1487 → 1555
Apr 2026
All-time peak 1555
at age 25
Apr 2026
Crossed 1500
at age 25
Feb 2026
2025
Crossed 1400
at age 24
Nov 2025
Crossed 1200
at age 24
Nov 2025
First FIDE rating
1487 · at age 24
Nov 2025

Standard rating history

Last 12 months — activity & highlights

Top opponent
vs Nicolas Daramelas 1,730
Brussels Open Winter 2026 Rounds 7-10 · Mar 2026 · +29.3 Elo
Evolution
—
Tournaments
5
10 games
Score
3.5/ 1035.0%
5W1D4L

Last 12 months — tournaments

5 events
EventDateScoreRankPerfΔ Elo
Brussels Open Winter 2026 Rounds 7-10
Open Swiss
Mar 20261/1#662530+30.4
Brussels Open Winter 2026 Rounds 1-4
Open Swiss
Jan 20261.5/2#391852+38.4
Brussels Open Fall 2025 Rounds 5-6
Open Swiss
Oct 20250/1#968020.0
Brussels Open Fall 2025 Round 4
Open Swiss
Sep 20250/1#617930.0
Brussels Open Fall 2025 Rounds 1-3
Open Swiss
Sep 20251/3#4314490.0
Hot streak: 5 tournaments without losing Elo.

Rankings

/
Belgium
#2,559
out of 3,309 players
Europe
#106,766
in continent
World
#163,543
out of 400,000+

National ranking

Europe & World

Europe
World
Belgium
1
🇧🇪Dardha, DanielFollow Daniel DardhaTrack their monthly FIDE ratings, games, tournaments and more.
2,602
2
🇧🇪Gurevich, MikhailFollow Mikhail GurevichTrack their monthly FIDE ratings, games, tournaments and more.
2,554
3
🇧🇪Ringoir, TanguyFollow Tanguy RingoirTrack their monthly FIDE ratings, games, tournaments and more.
2,529
4
🇧🇪Maerevoet, SimFollow Sim MaerevoetTrack their monthly FIDE ratings, games, tournaments and more.
2,456
5
🇧🇪Ruzhansky, EliasFollow Elias RuzhanskyTrack their monthly FIDE ratings, games, tournaments and more.
2,448
6
🇧🇪Glek, IgorFollow Igor GlekTrack their monthly FIDE ratings, games, tournaments and more.
2,423
7
🇧🇪Geirnaert, StevenFollow Steven GeirnaertTrack their monthly FIDE ratings, games, tournaments and more.
2,406
8
🇧🇪Todorov, TodorFollow Todor TodorovTrack their monthly FIDE ratings, games, tournaments and more.
2,402
9
🇧🇪Vandenbussche, ThibautFollow Thibaut VandenbusscheTrack their monthly FIDE ratings, games, tournaments and more.
2,397
10
🇧🇪Hovhannisyan, MherFollow Mher HovhannisyanTrack their monthly FIDE ratings, games, tournaments and more.
2,391
...
2559🇧🇪Mercier, Theo1,555
Europe
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,840
2
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,767
3
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,759
3
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,759
5
🇵🇱Duda, Jan-KrzysztofFollow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more.
2,739
6
🇳🇱Van Foreest, JordenFollow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more.
2,735
7
🇭🇺Rapport, RichardFollow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more.
2,729
8
🇫🇷Vachier-Lagrave, MaximeFollow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more.
2,717
8
🇦🇿Mamedyarov, ShakhriyarFollow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more.
2,717
10
🇹🇷Erdogmus, Yagiz KaanFollow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more.
2,708
...
106766🇧🇪Mercier, Theo1,555
World
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,840
2
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
3
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,788
4
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,780
5
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,776
6
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,767
7
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,759
7
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,759
9
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,754
10
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
...
163543🇧🇪Mercier, Theo1,555