Sergej Krefenstein

Country

GER

Birth Year

1980

Gender

M

Title

FIDE ID

12922072

FIDE ratings

2106

Classical

Published FIDE

2022

Rapid

Published FIDE

2011

Blitz

Published FIDE

Official classical ranks

World rank
#14980
National rank · GER
#1679

Active players · Oct 2026 FIDE list ⓘ

Rating history

Highest recorded rating
2225 Dec 2015
Recorded years
2010–2026
Archived games
186

Based on available monthly lists and saved games.

FIDE rating history

Published rating lists through Oct 2026.

View rating lists
Available Games

Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-03 (UTC).

# Date Event Site Round White Black Result Moves View
1 2026-08-09 Werner-Ott-Open 2026 Kreuzberg GER 9.6 Wirth,Heinz Krefenstein,Sergej 0-1 61 Open
2 2026-08-08 Werner-Ott-Open 2026 Kreuzberg GER 8.4 Krefenstein,Sergej Strehse,Nelson 1/2-1/2 80 Open
3 2026-08-07 Werner-Ott-Open 2026 Kreuzberg GER 7.3 Krefenstein,Sergej Dimitrijeski,K 1/2-1/2 37 Open
4 2026-08-06 Werner-Ott-Open 2026 Kreuzberg GER 6.7 Merz,Ru Krefenstein,Sergej 0-1 60 Open
5 2026-08-04 Werner-Ott-Open 2026 Kreuzberg GER 4.5 Beduschi,Ben Krefenstein,Sergej 1-0 34 Open
6 2026-08-03 Werner-Ott-Open 2026 Kreuzberg GER 3.1 Krefenstein,Sergej Eilenberg,Jonas 1/2-1/2 55 Open
7 2026-08-02 Werner-Ott-Open 2026 Kreuzberg GER 2.8 Ozates,Mert Krefenstein,Sergej 0-1 58 Open
8 2025-11-02 Kurt Richter Mem 2025 Berlin GER 7.1 Sergej Krefenstein Michael Strache 1/2-1/2 2 Open
9 2025-11-02 Kurt Richter Mem 2025 Berlin GER 6.3 Sergejs Simcaks Sergej Krefenstein 0-1 32 Open
10 2025-11-01 Kurt Richter Mem 2025 Berlin GER 5.4 Sergej Krefenstein Ivan Litvinov 1-0 46 Open
11 2025-10-31 Kurt Richter Mem 2025 Berlin GER 2.4 Sergej Krefenstein Sibylle Guder 0-1 57 Open
12 2025-10-31 Kurt Richter Mem 2025 Berlin GER 1.4 Dagobert Kohlmeyer Sergej Krefenstein 0-1 32 Open
13 2025-08-03 Werner-Ott-Open 2025 Kreuzberg GER 9.5 Ennio Rodriguez Klasen Sergej Krefenstein 1-0 44 Open
14 2025-04-27 BSV BEM Masters 2025 Berlin GER 9.8 Sergej Krefenstein Fabian Jahnz 0-1 25 Open
15 2025-04-26 BSV BEM Masters 2025 Berlin GER 8.9 Thomas Heerde Sergej Krefenstein 1/2-1/2 47 Open
16 2025-04-25 BSV BEM Masters 2025 Berlin GER 7.6 Michael Klenburg Sergej Krefenstein 1-0 52 Open
17 2025-04-24 BSV BEM Masters 2025 Berlin GER 6.9 Sergej Krefenstein Christoph Nogly 1-0 48 Open
18 2025-04-23 BSV BEM Masters 2025 Berlin GER 5.11 Sergej Krefenstein Frank Niehaus 1/2-1/2 45 Open
19 2025-04-22 BSV BEM Masters 2025 Berlin GER 4.11 Julian Noeldner Sergej Krefenstein 1/2-1/2 47 Open
20 2025-04-21 BSV BEM Masters 2025 Berlin GER 3.14 Jonas Kreutz Sergej Krefenstein 1/2-1/2 44 Open
21 2025-04-20 BSV BEM Masters 2025 Berlin GER 2.15 Sergej Krefenstein Juergen Brustkern 1-0 33 Open
22 2025-04-19 BSV BEM Masters 2025 Berlin GER 1.13 Sergej Krefenstein Mykhailo Matviienko 0-1 56 Open
23 2023-12-28 6th Spandau Christmas Spandau GER 3.4 Sergej Krefenstein Jonas Foerster 1/2-1/2 31 Open
24 2023-07-17 Werner-Ott-Open 2023 Kreuzberg GER 3.4 Aaron Matthes Sergej Krefenstein 1-0 52 Open
25 2022-05-28 Rudolf Teschner Mem 2022 Berlin GER 5.6 Dirk Paulsen Sergej Krefenstein 1/2-1/2 68 Open
26 2022-05-27 Rudolf Teschner Mem 2022 Berlin GER 3.5 Sergej Krefenstein Michael Klenburg 0-1 43 Open
27 2022-04-15 ch-Berlin 2022 Berlin GER 1.1 Sergej Krefenstein Rene Stern 0-1 54 Open
28 2019-10-20 Lichtenrader Herbst 2019 Berlin GER 9.8 Sergej Krefenstein Nikolai Nitsche 1-0 27 Open
29 2019-10-19 Lichtenrader Herbst 2019 Berlin GER 8.4 Vadim Shishkin Sergej Krefenstein 1-0 25 Open
30 2019-10-18 Lichtenrader Herbst 2019 Berlin GER 7.3 Sergej Krefenstein Henning Holinka 1/2-1/2 24 Open
31 2019-10-17 Lichtenrader Herbst 2019 Berlin GER 6.8 Sergej Krefenstein Dominik Fuchs 1-0 32 Open
32 2019-08-25 Lichtenberger Sommer 2019 Berlin GER 9.11 Sergej Krefenstein Teodora Rogozenco 1-0 30 Open
33 2019-08-24 Lichtenberger Sommer 2019 Berlin GER 8.4 Henrik Hesse Sergej Krefenstein 1-0 37 Open
34 2019-08-23 Lichtenberger Sommer 2019 Berlin GER 7.7 Sergej Krefenstein Atila Gajo Figura 1-0 26 Open
35 2019-08-22 Lichtenberger Sommer 2019 Berlin GER 6.16 Thomas Guenther Sergej Krefenstein 0-1 45 Open
36 2019-08-21 Lichtenberger Sommer 2019 Berlin GER 5.6 Sergej Krefenstein Christian Syre 0-1 93 Open
37 2019-08-20 Lichtenberger Sommer 2019 Berlin GER 4.14 Sergej Krefenstein Jens Bergmann 1-0 18 Open
38 2019-08-19 Lichtenberger Sommer 2019 Berlin GER 3.24 Joerg Hoffbauer Sergej Krefenstein 0-1 29 Open
39 2019-08-18 Lichtenberger Sommer 2019 Berlin GER 2.23 Sergej Krefenstein Knut Ahlers 1/2-1/2 71 Open
40 2019-08-17 Lichtenberger Sommer 2019 Berlin GER 1.28 Michael Glienke Sergej Krefenstein 0-1 73 Open
41 2019-06-25 Werner-Ott-Open 2019 Kreuzberg GER 4.2 Constantin Vogel Sergej Krefenstein 1-0 27 Open
42 2018-11-04 Lichtenrader Herbst 2018 Berlin GER 9.1 Juergen Juhnke Sergej Krefenstein 1-0 40 Open
43 2018-11-03 Lichtenrader Herbst 2018 Berlin GER 8.18 Sergej Krefenstein Frank Niehaus 1-0 54 Open
44 2018-11-02 Lichtenrader Herbst 2018 Berlin GER 7.27 Sergej Krefenstein Andre Jaeger 1-0 58 Open
45 2018-11-01 Lichtenrader Herbst 2018 Berlin GER 6.1 Nikolai Biriukov Sergej Krefenstein 1-0 40 Open
46 2018-10-31 Lichtenrader Herbst 2018 Berlin GER 5.19 Lepu Coco Zhou Sergej Krefenstein 1/2-1/2 60 Open
47 2018-10-30 Lichtenrader Herbst 2018 Berlin GER 4.26 Sergej Krefenstein Maximilian Fahland 1-0 31 Open
48 2018-10-29 Lichtenrader Herbst 2018 Berlin GER 3.7 Johannes Florstedt Sergej Krefenstein 1-0 28 Open
49 2018-08-25 Lichtenberger Sommer 2018 Berlin GER 8.16 Sergej Krefenstein Arne Joppien 0-1 46 Open
50 2018-08-24 Lichtenberger Sommer 2018 Berlin GER 7.18 Klaus, Dr. Kapr Sergej Krefenstein 0-1 41 Open

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