| Prague 1912 (1) |
Dobruský Club Winter Tournament |
6 | / | 13 |
| | | |
| Prague 1912 (2) |
Dubruský Club Tournament |
3.5 | / | 12 |
| | | |
| Berlin 1913 |
Berlin - Prague Team Match |
| | | | | | |
|
Opocensky, K. - Schulz (2) |
1 - 1 |
| | | |
| Debrecen 1913 (4) |
5th Hungarian Chess Federation Congress - Hauptturnier C |
5 | / | 7 |
| | | |
| Debrecen 1913 (5) |
5th Hungarian Chess Federation Congress - Siegergruppe |
4 | / | 8 |
| | | |
| Trubau 1913 |
Trubau Tournament |
6.5 | / | 9 |
| | | |
| Jungbunzlau 1913 (2) |
Czech Chess Association Congress - Hauptturnier |
11.5 | / | 14 |
| | | |
| Baden bei Wien 1914 |
Baden bei Wien Gambit Tournament |
5 | / | 18 |
| | | |
| Prague 1914 |
Berlin - Prague Team Match |
| | | | | | |
|
Opocensky, K. - Jacobowitz, L. |
1 - 1 |
| | | |
| Mannheim 1914 (2) |
19th German Chess Federation Congress - Hauptturnier A |
5 | / | 11 |
| | | |
| Belun 1916 |
Belun Tournament |
11.5 | / | 14 |
| | | |
| Prague 1919 |
6th Czech Chess Association Congress |
6 | / | 10 |
| | | |
| Prague 1921 |
1st Prague City Championship |
6.5 | / | 11 |
| | | |
| Pistyan 1922 (1) |
Breyer Memorial Master Tournament |
4.5 | / | 18 |
| | | |
| Vienna 1923 (2) |
Schlechter Memorial Tournament |
6 | / | 11 |
| | | |
| Merano 1924 (1) |
Merano Congress - Master Tournament |
6.5 | / | 13 |
| | | |
| Vienna 1924 (1) |
Bratislava Club - Schlechter Club Match |
| | | | | | |
|
Opocensky, K. - Konig, I.R. |
0 - 1 |
| | | |
| Trencianske Teplice 1924 (1) |
Slovakia - Austria Match |
| | | | | | |
|
Opocensky, K. - Becker, A. |
0 - 1 |
| | | |
| Bratislava 1924 (2) |
Breyer Memorial Tournament |
11.5 | / | 16 |
| | | |
| Hastings 1925 (3) |
5th Hastings Christmas Congress - Premier Reserves |
6.5 | / | 7 |
| | | |
| Paris 1925 (1) |
Paris Tournament |
4 | / | 8 |
| | | |
| Marienbad 1925 |
Marienbad Tournament |
6.5 | / | 15 |
| | | |
| Kolin 1925 |
Kolin Tournament |
1.5 | / | 3 |
| | | |
| Znojmo 1927 |
Znojmo Tournament |
8.5 | / | 11 |
| | | |
| Ceske Budejovice 1927 (6) |
10th Czech Chess Association Congress - Championship |
10.5 | / | 14 |
| | | |
| Prague 1927 (3) |
4th Prague City Championship |
7.5 | / | 11 |
| | | |
| Prague 1928 (1) |
Evona Tournament - 5th Prague Championship |
9.5 | / | 15 |
| | | |
| Brno 1928 (2) |
Brno Tournament |
5 | / | 9 |
| | | |
| Prague 1928 (2) |
4th Kautsky Memorial Tournament |
8.5 | / | 12 |
| | | |
| Prague 1928 (3) |
Prague Tournament |
5 | / | 5 |
| | | |
| Prague 1929 (1) |
5th Kautsky Memorial Tournament |
7 | / | 12 |
| | | |
| Brno 1929 (3) |
11th Czech Chess Association Congress - Championship |
9 | / | 11 |
| | | |
| Prague 1929 (2) |
6th Prague City Championship |
9 | / | 11 |
| | | |
| Prague 1930 (1) |
Olympiad Preparation Tournament |
3.5 | / | 5 |
| | | |
| Mnichovo Hradiste 1930 |
Mnichovo Hradiste Tournament |
4.5 | / | 7 |
| | | |
| Stubnanske Teplice 1930 |
Stubnanske Teplice Tournament |
7.5 | / | 12 |
| | | |
| Prague 1930 (2) |
6th Kautsky Memorial Tournament |
6 | / | 11 |
| | | |
| Prague 1930 (3) |
7th Prague City Championship |
10.5 | / | 14 |
| | | |
| Prague 1931 (1) |
7th Kautsky Memorial Tournament |
8 | / | 12 |
| | | |
| Prague 1931 (3) |
Pre-Olympiad Tournament |
6.5 | / | 11 |
| | | |
| Prague 1931 (5) |
4th Olympiad |
9 | / | 13 |
| | | |
| Prague 1931 (14) |
Prague Tournament |
9.5 | / | 13 |
| | | |
| Bad Sliac 1932 |
Bad Sliac Major Tournament |
5 | / | 13 |
| | | |
| Jicin 1932 |
Jicin Tournament - Section 2 |
4.5 | / | 6 |
| | | |
| Prague 1932 (1) |
8th Kautsky Memorial Tournament |
9 | / | 13 |
| | | |
| Kosice 1932 |
Kosice Tournament |
8 | / | 10 |
| | | |
| Prague 1932 (2) |
9th Prague Championship |
6.5 | / | 11 |
| | | |
| Prague 1932 (3) |
Prague Tournament |
8 | / | 13 |
| | | |
| Folkestone 1933 (2) |
5th Olympiad |
11.5 | / | 13 |
| | | |
| Mnichovo Hradiste 1933 (1) |
13th Czech Chess Association Congress - Championship |
5.5 | / | 11 |
| | | |
| Prague 1933 (3) |
10th Prague Championship |
9 | / | 11 |
| | | |
| Prague 1934 (1) |
11th Prague Championship |
8 | / | 9 |
| | | |
| Semilech 1934 (1) |
Semilech Tournament - Section 2 |
5.5 | / | 7 |
| | | |
| Prague 1934 (2) |
10th Kautsky Memorial Tournament |
11 | / | 15 |
| | | |
| Zilina 1935 |
Slovak Championship |
7 | / | 9 |
| | | |
| Luhacovice 1935 |
Olympiad Selection Tournament |
5 | / | 7 |
| | | |
| Bad Nauheim 1935 |
Bad Nauheim Tournament |
5 | / | 9 |
| | | |
| Warsaw 1935 (2) |
6th Olympiad |
8 | / | 15 |
| | | |
| Lodz 1935 (4) |
Lodz International Tournament |
5.5 | / | 9 |
| | | |
| Prague 1935 (1) |
12th Kautsky Memorial Tournament |
9.5 | / | 14 |
| | | |
| Prague 1935 (2) |
11th Kautsky Memorial Tournament |
11 | / | 13 |
| | | |
| Prague 1935 (4) |
12th Prague Championship |
11.5 | / | 13 |
| | | |
| Prague 1935 (5) |
Prague Tournament |
13.5 | / | 17 |
| | | |
| Novi Sad 1936 |
2nd Yugoslav Master Championship |
6.5 | / | 13 |
| | | |
| Podebrady 1936 (2) |
14th Czechoslovakia Championship |
8 | / | 17 |
| | | |
| Nottingham 1936 (3) |
Nottingham Major Open B |
7 | / | 11 |
| | | |
| Vienna 1936 (1) |
19th Trebitsch Memorial Tournament |
10.5 | / | 15 |
| | | |
| Prague 1937 (1) |
Prague International Tournament |
4 | / | 11 |
| | | |
| Parnu 1937 |
Parnu Tournament |
3.5 | / | 7 |
| | | |
| Teplitz-Schönau 1937 |
16th Congress of the German Chess Federation in Czechoslovakia |
6.5 | / | 9 |
| | | |
| Prague 1938 (2) |
Prague Club - Duras Club Match |
| | | | | | |
|
Opocensky, K. - Gilg, K. |
0 - 1 |
| | | |
| Margate 1938 (3) |
Margate Premier Reserves B |
6 | / | 9 |
| | | |
| Prague 1938 (8) |
15th Czechoslovakia Championship |
8 | / | 12 |
| | | |
| Nice 1938 (2) |
Nice International Tournament |
7.5 | / | 9 |
| | | |
| Prague 1938 (11) |
14th Kautsky Memorial Tournament |
6 | / | 13 |
| | | |
| Margate 1939 (3) |
Margate Premier Reserves B |
6.5 | / | 11 |
| | | |
| Buenos Aires 1939 (1) |
8th Olympiad - Qualifying Group 1 |
4 | / | 5 |
| | | |
| Buenos Aires 1939 (6) |
8th Olympiad - Final A |
6 | / | 12 |
| | | |
| Prague 1939 (1) |
Olympiad Preparation Tournament |
4.5 | / | 7 |
| | | |
| Rakovnik 1940 |
16th Czechoslovakia Championship |
8 | / | 11 |
| | | |
| Trencianske Teplice 1941 |
Trencianske Teplice Tournament |
5 | / | 11 |
| | | |
| Munich 1941 |
2nd Europa Tournament |
5.5 | / | 15 |
| | | |
| Prague 1941 (1) |
17th Kautsky Memorial Tournament |
10.5 | / | 15 |
| | | |
| Velichovky 1941 |
Velichovky Tournament |
4.5 | / | 7 |
| | | |
| Vienna 1942 (1) |
Vienna Tournament |
3 | / | 7 |
| | | |
| Prague 1942 (1) |
Prague Tournament |
6.5 | / | 11 |
| | | |
| Chocen 1942 |
Choceň Tournament |
0 | / | 2 |
| | | |
| Prague 1943 (1) |
Prague International Tournament |
9 | / | 19 |
| | | |
| Prague 1943 (2) |
17th Czechoslovakia Championship |
7 | / | 11 |
| | | |
| Prague 1944 (1) |
17th Czechoslovakia Championship - Play-off |
1.5 | / | 4 |
| | | |
| Hradec Kralove 1944 |
Hradec Kralove Tournament |
9 | / | 13 |
| | | |
| Brno 1944 |
18th Czechoslovakia Championship |
11 | / | 15 |
| | | |
| Ceske Budejovice 1944 |
Ceske Budejovice Tournament |
6.5 | / | 9 |
| | | |
| Nepomuk 1944 |
Nepomuk Tournament |
5.5 | / | 7 |
| | | |
| Prague 1944 (2) |
19th Prague Championship |
7 | / | 15 |
| | | |
| Zlin 1945 |
Zlin Tournament |
8.5 | / | 14 |
| | | |
| Prague 1945 (1) |
Prague Tournament |
6.5 | / | 10 |
| | | |
| Hastings 1946 (2) |
21st Hastings Christmas Congress - Premier Reserves A |
8 | / | 10 |
| | | |
| London, England 1946 (1) |
London International Tournament - Section A |
7 | / | 11 |
| | | |
| Prague 1946 (1) |
Moscow - Prague Match |
1.5 | / | 6 |
| | | |
| Moscow 1946 (2) |
Moscow - Prague Match |
1.5 | / | 6 |
| | | |
| Moravska Ostrava 1946 (1) |
19th Czechsolovakia Championship |
8.5 | / | 14 |
| | | |
| Prague 1946 (2) |
Treybal Memorial Tournament |
3.5 | / | 13 |
| | | |
| Arbon 1946 |
Arbon Tournament |
5 | / | 7 |
| | | |
| Leningrad 1946 (6) |
Leningrad - Prague and Bratislava Match |
| | | | | | |
|
Opocensky, K. - Tolush, A.K. |
0.5 - 1.5 |
| | | |
| Vienna 1947 (2) |
Schlechter Memorial Tournament |
10 | / | 15 |
| | | |
| The Hague 1947 |
Netherlands - Czechoslovakia Match |
| | | | | | |
|
Opocensky, K. - Kramer, H. (2) |
1 - 1 |
| | | |
| London, England 1947 (1) |
Great Britain - Czechoslovakia Match |
| | | | | | |
|
Opocensky, K. - Fairhurst, W.A. |
1.5 - 0.5 |
| | | |
| Paris 1947 (3) |
France - Czechoslovakia Match |
| | | | | | |
|
Opocensky, K. - Muffang, A.L.R. |
0.5 - 1.5 |
| | | |
| Zagreb 1947 |
Yugoslavia - Czechoslovakia Match |
| | | | | | |
|
Opocensky, K. - Puc, S. |
1 - 0 |
| | | |
|
Opocensky, K. - Bidev, P. |
0 - 1 |
| | | |
| Karlovy Vary and Marianske Lazne 1948 |
Karlovy Vary - Marianske Lazne Tournament |
11 | / | 19 |
| | | |
| Rogaska Slatina 1948 |
Rogaska Slatina Tournament |
7 | / | 15 |
| | | |
| Splindleruv Mlyn 1948 (1) |
Czechoslovakia - Yugoslavia Match |
| | | | | | |
|
Opocensky, K. - Puc, S. |
0 - 1 |
| | | |
| Venice 1948 |
Venice Tournament |
4.5 | / | 13 |
| | | |
| Prague 1948 |
4th Jelinek Memorial Tournament |
3.5 | / | 6 |
| | | |
