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Sideras, Kostandinos

🇳🇱

FIDEFIDE 1056409· Male· Netherlands· Born in 1974

Follow Kostandinos SiderasTrack his monthly FIDE ratings, games, tournaments and more.

Kostandinos Sideras, a 52-year-old Dutch player, is rated 1952 — just 24 short of his peak of 1976 (May 2018, age 44). He plays occasionally (6 games in the last 12 months) and had 3 career breaks: 12 months (2017–2018), 13 months (2019–2020) and 46 months (2020–2024, COVID-19 included). Recent standard appearances include Dutch Team Competition - klasse 5 Round 5, Dutch Team Competition - klasse 5 Round 6, and Tata Steel Chess 2026 - Weekendvierkampen.

Current rating

1952

Standard

Rpd—·Blz—

All-time high

1976

−24 pts below
May 2018 · age 44

Activity

2

games / yr avg.

6 past 12 mo · ≈1/mo
classical only
Occasional

Signature stat

#36,261

#36,261 · players worldwide · of 216,808

Career timeline

8 entries
2020
Inactive for 46 months
paused at 1911 → returned at 1947
Apr 2020
2019
Inactive for 13 months
paused at 1935 → returned at 1911
Feb 2019
2018
Best 12-month gain (+56 Elo)
1920 → 1976
May 2018
All-time peak 1976
at age 44 · −24 from today
May 2018
2017
Crossed 1800
at age 43
Feb 2017
Inactive for 12 months
paused at 1920 → returned at 1950
Feb 2017

Standard rating history

Last 12 months — activity & highlights

Top opponent
vs Arnout Van Kempen 1,988
Dutch Team Competition - klasse 5 Round 5 · Mar 2026 · +22.1 Elo
Evolution
+5
1947 → 1952
Tournaments
5
8 games
Score
3.5/ 843.8%
3W3D2L

Last 12 months — tournaments

5 events
EventDateScoreRankPerfΔ Elo
Dutch Team Competition - klasse 5 Round 5
Team
Mar 20261/1#1902788+23.2
Dutch Team Competition - klasse 5 Round 6
Team
Feb 20261/1#2042686+18.8
Tata Steel Chess 2026 - Weekendvierkampen
Round-Robin
Jan 20260.5/2#4441618-34.4
Dutch Team Competition - klasse 5 Round 4
Team
Dec 20250.5/1#3791964+1.2
Dutch Team Competition - klasse 5 Round 3
Team
Nov 20250.5/1#3391884-3.6
Worst Elo result: Tata Steel Chess 2026 - Weekendvierkampen (-34.4 Elo, finished #444).

Rankings

/
Netherlands
#1,531
out of 4,901 players
Europe
#26,788
in continent
World
#36,261
out of 400,000+

National ranking

Europe & World

Europe
World
Netherlands
1
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,767
2
🇳🇱Van Foreest, JordenFollow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more.
2,735
3
🇳🇱Van Wely, LoekFollow Loek Van WelyTrack their monthly FIDE ratings, games, tournaments and more.
2,625
4
🇳🇱L'Ami, ErwinFollow Erwin L'AmiTrack their monthly FIDE ratings, games, tournaments and more.
2,592
5
🇳🇱Schoppen, CasperFollow Casper SchoppenTrack their monthly FIDE ratings, games, tournaments and more.
2,589
6
🇳🇱Reinderman, DimitriFollow Dimitri ReindermanTrack their monthly FIDE ratings, games, tournaments and more.
2,574
7
🇳🇱Sokolov, IvanFollow Ivan SokolovTrack their monthly FIDE ratings, games, tournaments and more.
2,567
8
🇳🇱Smeets, JanFollow Jan SmeetsTrack their monthly FIDE ratings, games, tournaments and more.
2,564
9
🇳🇱Bok, BenjaminFollow Benjamin BokTrack their monthly FIDE ratings, games, tournaments and more.
2,560
10
🇳🇱Van den Doel, ErikFollow Erik Van den DoelTrack their monthly FIDE ratings, games, tournaments and more.
2,549
...
1531🇳🇱Sideras, Kostandinos1,952
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
...
26788🇳🇱Sideras, Kostandinos1,952
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
...
36261🇳🇱Sideras, Kostandinos1,952