| * |
Groningen 1893 (1) |
21st Netherland Chess Federation Tournament - 1st class |
| ** |
Groningen 1893 (2) |
21st Netherland Chess Federation Tournament - 2nd class |
| |
Groningen 1896 (1) |
Groningen Tournament - Section I |
| |
Groningen 1896 (2) |
Groningen Tournament - Section II |
| |
Groningen 1900 (1) |
28th Netherland Chess Federation Congress - 1st Class Tournament |
| |
Groningen 1900 (2) |
28th Netherland Chess Federation Congress - 2nd Class, Group A |
| |
Groningen 1900 (3) |
28th Netherland Chess Federation Congress - 2nd Class, Group B |
| |
Groningen 1900 (4) |
28th Netherland Chess Federation Congress - 2nd Class, Group C |
| |
Groningen 1900 (5) |
28th Netherland Chess Federation Congress - 2nd Class, Play-offs |
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Groningen 1900 (6) |
28th Netherland Chess Federation Congress - Women's Tournament |
| |
Groningen 1925 |
Groningen Tournament |
| |
Groningen 1934 |
Groningen Tournament |
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Groningen 1941 |
Groningen Tournament |
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Groningen 1946 |
Groningen International Tournament |
