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Player Profile

Player:

(Eg: Carlsen,Magnus)

Koch, Ralf Johannes



Years:	2008-2024
Number of games:	122
Number of wins:	38
Number of draws:	39
Number of losses:	45
White score:	28½/61 (46.72% - Average Elo: 1761.75)
Black score:	29/61 (47.54% - Average Elo: 1762.02)

Rating progression

Games
White wins
White draws
White losses
Black wins
Black draws
Black losses

Top wins

Koch, Ralf Johannes (1751) - Welsh, Michael (2023), Hamburg HSK Christmas op 1st, Hamburg (C00) - 2015

Koch, Ralf Johannes (1750) - Schmidt, Niko (1811), Kiel op-B 27th, Kiel (D02) - 2014

Koch, Ralf Johannes (1834) - Remboldt, Viktor (1802), Kiel op 25th, Kiel () - 2012

Porth, Hartmut (2068) - Koch, Ralf Johannes (1767), Hamburg-ch Seniors 50+, Hamburg (E61) - 2018

Poghosyan, Tigran (1867) - Koch, Ralf Johannes (1834), Kiel op 25th, Kiel () - 2012

Cassens, Erhard Otto (1850) - Koch, Ralf Johannes (1764), Hamburg St Pauli op-B, Hamburg (A45) - 2014

Koch, Ralf Johannes - ? (57)

Becker, Thomas3 (0/2)

Bremer, Wolfgang (1/2)

Falk, Rolf (2/2)

Iwanow, Thomas (1/2)

Atri, Jamshid (½/1)

Aumueller, Ingo (0/1)

Behrendt, Matthias (1/1)

Blietschau, Volker (0/1)

Bockelmann, Fred (1/1)

Bohn, Christoph (0/1)

Bohnstorff, Michael (0/1)

Brasoy, Aksel (0/1)

Dangelowski, Peter (1/1)

Dao, Joerg (1/1)

Ditmas, Hugh (0/1)

Eschweiler, Markus (½/1)

Frantsen, Tom (½/1)

Gaede, Derek (0/1)

Grabow, Pouelsten Holm (0/1)

Graefe, Johannes (0/1)

Heldt, Nils Lennart (0/1)

Hoeger, Philipp (0/1)

Hoppe, Marc (1/1)

Hotze, Kurt (1/1)

Johanssen, Torsten (½/1)

Kardoeus, David (0/1)

Klein, Franz (½/1)

Kronenthal, Linda (½/1)

Krueger, Marian (½/1)

Moshtael, Wesal (0/1)

Mungard, Jens Uwe (0/1)

Nowack, Achim (0/1)

Remboldt, Viktor (1/1)

Retzlaff, Wolfgang (1/1)

Ridder Moeller, Carmen (1/1)

Ruhland, Cliff (½/1)

Schaefer, Ruediger (½/1)

Schleu, Guenther (1/1)

Schmidt, Niko (1/1)

Schoppe, Gottfried (1/1)

Schumacher, Horst (½/1)

Schwarzkopf, Joerg (½/1)

Schwietering, Ralf (½/1)

Shvartzman, Ilya (½/1)

Siebenborn, Bernd (0/1)

Simon, Christopher (½/1)

Van Riesen, Klaus (½/1)

Vogel, Christian (0/1)

Weck, Uwe (1/1)

Welsh, Michael (1/1)

Wobbe, Sven (0/1)

Yaaqoub, Rashid (0/1)

Zielke, Bernd (1/1)

? - Koch, Ralf Johannes (60)

Schirmer, Werner (1/2)

Blietschau, Volker (0/1)

Bohner, Joerg (1/1)

Bornhorst, Lars (1/1)

Bracker, Arne (0/1)

Brockmann, Werner (1/1)

Buschhaus, Ralf (½/1)

Cassens, Erhard Otto (1/1)

Farokhi, Keyvan (½/1)

Fieron, Andreas (1/1)

Frackowiak, Stanislaw (½/1)

Franzenburg, Maria (0/1)

Griwenka, Volker (½/1)

Grotrian, Peter (1/1)

Gutschenreiter, Donato (1/1)

Hartwig, Sebastian (0/1)

Hertel, Johannes (0/1)

Hinke, Gerhard (1/1)

Holinka, Henning (½/1)

Homm, Marc Michael (0/1)

Jantzen, Hans Joerg (0/1)

Klawitter, Bernd (0/1)

Klawitter, Rolf (1/1)

Kraemer, Martin (0/1)

Luettig, Hendrik (1/1)

Menrad, Andreas (½/1)

Meyer, Winfried (1/1)

Mi, Gufeng (½/1)

Neitzel, Mirko (½/1)

Neuendorf, Max (0/1)

Obreht, Slobodan (1/1)

Oltmanns, Marc (0/1)

Pill, Bernhard (0/1)

Poghosyan, Tigran (1/1)

Porth, Hartmut (1/1)

Potschka, Dieter (0/1)

Rabe, Klaus (½/1)

Raedisch, Peter (1/1)

Reimann, Norbert (0/1)

Reinke, Martin (0/1)

Sachse, Theo (1/1)

Schmidt, Peter1 (0/1)

Schultze, Steffen (½/1)

Schwerdtfeger, Wolfgang (0/1)

Slesicki, Andreas (1/1)

Stenzel, Jan (½/1)

Tornier, Siegfried (1/1)

Ueckermann, S (½/1)

Von Rosen, Jakob (½/1)

Weisshorn, Lasse (0/1)

Zielke, Bernd (½/1)

Openings played as White (24)

B23 Sicilian, Closed (1.e4 c5 2.Nc3)
Average Elo: 1718.08
Result: 6/13 = 46.15%

Uncommon Opening (1.g4, a3, h3, etc.)
Average Elo: 1749.38
Result: 3/8 = 37.5%

D02 Queen's Pawn Game (1.d4 d5 2.Nf3)
Average Elo: 1880
Result: 3/6 = 50%

C26 Vienna (1.e4 e5 2.Nc3 Nf6)
Average Elo: 1469.25
Result: 3½/5 = 70%

C00 French Defense (1.e4 e6)
Average Elo: 1986.25
Result: 1/4 = 25%

B24 Sicilian, Closed (1.e4 c5 2.Nc3 Nc6 3.g3)
Average Elo: 2159
Result: 0/3 = 0%

A48 King's Indian (1.d4 Nf6 2.Nf3 g6)
Average Elo: 1615
Result: 1/2 = 50%

B80 Sicilian, Scheveningen (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6)
Average Elo: 1737
Result: 2/2 = 100%

C25 Vienna (1.e4 e5 2.Nc3)
Average Elo: 1524
Result: 1½/2 = 75%

C44 King's Pawn Game (1.e4 e5 2.Nf3 Nc6)
Average Elo: 1692.5
Result: 1½/2 = 75%

B15 Caro-Kann (1.e4 c6 2.d4 d5 3.Nc3)
Average Elo: 0
Result: ½/1 = 50%

B25 Sicilian, Closed (1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6)
Average Elo: 1727
Result: 0/1 = 0%

B10 Caro-Kann (1.e4 c6)
Average Elo: 2138
Result: ½/1 = 50%

B01 Scandinavian (1.e4 d5)
Average Elo: 1939
Result: 0/1 = 0%

A14 English (1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O)
Average Elo: 1990
Result: 0/1 = 0%

A36 English (1.c4 c5 2.Nc3 Nc6 3.g3)
Average Elo: 1914
Result: ½/1 = 50%

A04 Reti Opening (1.Nf3)
Average Elo: 1960
Result: ½/1 = 50%

A10 English (1.c4)
Average Elo: 1134
Result: 1/1 = 100%

B04 Alekhine's Defense, Modern (1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3)
Average Elo: 1776
Result: ½/1 = 50%

B07 Pirc (1.e4 d6 2.d4 Nf6)
Average Elo: 1455
Result: 1/1 = 100%

A46 Queen's Pawn Game (1.d4 Nf6 2.Nf3)
Average Elo: 1738
Result: 0/1 = 0%

C54 Giuoco Piano (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4)
Average Elo: 2141
Result: 0/1 = 0%

B20 Sicilian (1.e4 c5)
Average Elo: 1599
Result: 1/1 = 100%

B50 Sicilian (1.e4 c5 2.Nf3 d6)
Average Elo: 1740
Result: ½/1 = 50%

Openings played as Black (32)

B06 Robatsch (1.e4 g6)
Average Elo: 1659.75
Result: 5½/9 = 61.11%

B07 Pirc (1.e4 d6 2.d4 Nf6)
Average Elo: 1696.75
Result: 4½/8 = 56.25%

B08 Pirc, Classical (1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3)
Average Elo: 1845.5
Result: 3/7 = 42.86%

E61 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3)
Average Elo: 1678.5
Result: 2/3 = 66.67%

Uncommon Opening (1.g4, a3, h3, etc.)
Average Elo: 1726.33
Result: 2/3 = 66.67%

B09 Pirc, Austrian Attack (1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4)
Average Elo: 2005.67
Result: ½/3 = 16.67%

E62 King's Indian, Fianchetto (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 d6 5.g3)
Average Elo: 1883
Result: 0/2 = 0%

A48 King's Indian (1.d4 Nf6 2.Nf3 g6)
Average Elo: 1415
Result: 1/2 = 50%

C18 French, Winawer (1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3)
Average Elo: 2465
Result: 0/1 = 0%

B81 Sicilian, Scheveningen, Keres Attack (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4)
Average Elo: 1801
Result: 0/1 = 0%

B42 Sicilian, Kan (1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3)
Average Elo: 0
Result: ½/1 = 50%

E60 King's Indian Defense (1.d4 Nf6 2.c4 g6)
Average Elo: 1872
Result: 0/1 = 0%

E94 King's Indian, Orthodox (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O)
Average Elo: 0
Result: 0/1 = 0%

E97 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6)
Average Elo: 1976
Result: 0/1 = 0%

E99 King's Indian, Orthodox, Taimanov (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5)
Average Elo: 1992
Result: ½/1 = 50%

A16 English (1.c4 Nf6 2.Nc3)
Average Elo: 1903
Result: 0/1 = 0%

E92 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5)
Average Elo: 2072
Result: ½/1 = 50%

A26 English (1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6)
Average Elo: 1960
Result: ½/1 = 50%

A45 Queen's Pawn Game (1.d4 Nf6)
Average Elo: 1850
Result: 1/1 = 100%

A05 Reti Opening (1.Nf3 Nf6)
Average Elo: 1415
Result: 1/1 = 100%

A39 English, Symmetrical, Main line with d4 (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4)
Average Elo: 1623
Result: 1/1 = 100%

E91 King's Indian (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2)
Average Elo: 1652
Result: 1/1 = 100%

A15 English (1.c4 Nf6)
Average Elo: 2128
Result: 0/1 = 0%

A03 Bird's Opening (1.f4 d5)
Average Elo: 1972
Result: 0/1 = 0%

A38 English, Symmetrical (1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6)
Average Elo: 1161
Result: ½/1 = 50%

A30 English, Symmetrical (1.c4 c5)
Average Elo: 0
Result: 0/1 = 0%

A50 Queen's Pawn Game (1.d4 Nf6 2.c4)
Average Elo: 2026
Result: 0/1 = 0%

A56 Benoni Defense (1.d4 Nf6 2.c4 c5)
Average Elo: 1439
Result: 1/1 = 100%

A41 Queen's Pawn Game (with ...d6) (1.d4 d6)
Average Elo: 1473
Result: 1/1 = 100%

A04 Reti Opening (1.Nf3)
Average Elo: 1464
Result: ½/1 = 50%

B72 Sicilian, Dragon (1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3)
Average Elo: 1918
Result: ½/1 = 50%

A01 Nimzovich-Larsen Attack (1.b3)
Average Elo: 1842
Result: 1/1 = 100%