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KI

Kostowski, Ireneus, Dr.

🇩🇪

FIDEFIDE 4689615· Male· Germany· Born in 1975

Follow Ireneus KostowskiTrack his monthly FIDE ratings, games, tournaments and more.

Ireneus, Dr. Kostowski, a 51-year-old German player, is rated 1886. He has slipped back 38 Elo over the past 12 months. 25 rated games in the past year (≈5/year long-term). Recent standard appearances include 33. DSK-Open 2026 Maerz 2026, 8. Dinslakener offene Stadtmeisterschaft im Schach, and 61st International Akiba Rubinstein Chess Festival - OPEN B. He had 3 career breaks: 47 months (2004–2008), 21 months (2008–2009) and 148 months (2010–2023). His peak of 1924 was reached at age 50 (May 2025).

Current rating

1886

Standard

Rpd—·Blz—

All-time high

1924

−38 pts below
May 2025 · age 50

Activity

32

games / yr avg. · ≈3/mo

25 past 12 mo · ≈2/mo
classical only
Active

Signature stat

#51,614

#51,614 · players worldwide · of 216,808

Career timeline

11 entries
2025
100 career games
at age 50
Sep 2025
All-time peak 1924
at age 50 · −38 from today
May 2025
Best 12-month gain (+92 Elo)
1769 → 1861
Jan 2025
2024
Re-crossed 1800
at age 49
Mar 2024
2023
K-factor lowered to 20
at age 48
Jul 2023
2010
Inactive for 148 months
paused at 1863 → returned at 1885
Nov 2010

Standard rating history

Last 12 months — activity & highlights

Best result
8. Dinslakener offene Stadtmeisterschaft im Schach
perf 1980 (+89) · 4.5/7 · #9
Top opponent
vs Philip Brockhaus 2,036
8. Dinslakener offene Stadtmeisterschaft im Schach · Oct 2025 · +3.9 Elo
Evolution
-37
1923 → 1886
Tournaments
6
26 games
Score
13.5/ 2651.9%
10W7D9L

Last 12 months — tournaments

6 events
EventDateScoreRankPerfΔ Elo
33. DSK-Open 2026 Maerz 2026
Open Swiss
Mar 20261/1#222477+4.6
33. DSK-Open 2026 Februar 2026
Open Swiss
Feb 20260/1#551249-5.8
33. DSK-Open 2026 Januar 2026
Open Swiss
Jan 20262/2#322584-3.8
8. Dinslakener offene Stadtmeisterschaft im Schach
Open Swiss
Oct 20254.5/7#91980+25.8
61st International Akiba Rubinstein Chess Festival - OPEN B
Open Swiss
Aug 20254.5/9#491796-22.6
Worst Elo result: Deutsche Schach-Amateurmeisterschaft 2024-2025 Finale D (-37.0 Elo, finished #35).

Rankings

/
Germany
#5,627
out of 15,291 players
Europe
#37,960
in continent
World
#51,614
out of 400,000+

National ranking

Europe & World

Europe
World
Germany
1
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,759
2
🇩🇪Bluebaum, MatthiasFollow Matthias BluebaumTrack their monthly FIDE ratings, games, tournaments and more.
2,694
3
🇩🇪Donchenko, AlexanderFollow Alexander DonchenkoTrack their monthly FIDE ratings, games, tournaments and more.
2,645
3
🇩🇪Svane, FrederikFollow Frederik SvaneTrack their monthly FIDE ratings, games, tournaments and more.
2,645
5
🇩🇪Kollars, DmitrijFollow Dmitrij KollarsTrack their monthly FIDE ratings, games, tournaments and more.
2,635
6
🇩🇪Svane, RasmusFollow Rasmus SvaneTrack their monthly FIDE ratings, games, tournaments and more.
2,620
7
🇩🇪Engel, LuisFollow Luis EngelTrack their monthly FIDE ratings, games, tournaments and more.
2,593
8
🇩🇪Doettling, FabianFollow Fabian DoettlingTrack their monthly FIDE ratings, games, tournaments and more.
2,592
9
🇩🇪Wagner, DennisFollow Dennis WagnerTrack their monthly FIDE ratings, games, tournaments and more.
2,591
10
🇩🇪Braun, ArikFollow Arik BraunTrack their monthly FIDE ratings, games, tournaments and more.
2,587
...
5627🇩🇪Kostowski, Ireneus, Dr.1,886
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
...
37960🇩🇪Kostowski, Ireneus, Dr.1,886
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
...
51614🇩🇪Kostowski, Ireneus, Dr.1,886