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Poland
Boguslav Sieka is a motorcycle trials rider who competes internationally for Poland. His last result is the 67th place for the Germany GP 1989. He has competed in Trial.
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| Event | Pos | Date |
|---|---|---|
Trial - Germany |
67 | 03/09/1989 |
Trial - Czech Republic |
44 | 09/08/1989 |
Trial - Austria |
63 | 30/07/1989 |
| Event | Pos | Date |
|---|---|---|
Trial - Poland |
31 | 11/09/1988 |
Trial - Austria |
50 | 29/05/1988 |
Trial - Germany |
68 | 24/04/1988 |
| Event | Pos | Date |
|---|---|---|
Trial - Czech Republic |
41 | 30/08/1987 |
Trial - Austria |
66 | 12/07/1987 |
| Event | Pos | Date |
|---|---|---|
Trial - Austria |
68 | 06/07/1986 |
Trial - Germany |
75 | 29/06/1986 |
| Event | Pos | Date |
|---|---|---|
Trial - Poland |
43 | 22/06/1985 |