All available race results Hermann Siebelhoff
| Date | Race | Rank |
| 10/06 | Harz Rundfahrt | 13 |
Rider information for 1934
| Rank | 1386 |
| Score | 0 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Dürkopp |
| Date | Race | Rank |
| 26/05 | Rund um Spessart und Rhön | 9 |
Rider information for 1935
| Rank | 600 |
| Score | 29 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Individual |
No results available in season 1936.
Rider information for 1936
| Rank | 885 |
| Score | 12 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Individual |
| Date | Race | Rank |
| 03/04 | Berlin - Cottbus - Berlin | 2 |
| 08/05 | Rund um die Hainleite | 4 |
| Deutschlandrundfahrt | ||
| 13/06 | Stage 5 | 2 |
| 15/06 | Stage 6 | 6 |
| 21/06 | Stage 11 | 2 |
| 23/06 | Stage 13 | 8 |
| 25/06 | Stage 15 | 6 |
| 25/06 | General Classification | 18 |
| 28/08 | Großer Sachsenpreis | 10 |
Rider information for 1938
| Rank | 200 |
| Score | 204 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Victoria |
| Date | Race | Rank |
| Großdeutschlandfahrt | ||
| 01/06 | Stage 1 | 5 |
| 02/06 | Stage 2 | 5 |
| 03/06 | Stage 3 | 7 |
| 16/07 | Harz Rundfahrt | 4 |
Rider information for 1939
| Rank | 612 |
| Score | 30 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Victoria |
| Date | Race | Rank |
| 04/08 | Großer Sachsenpreis | 22 |
| 20/09 | Tour de Luxembourg | 12 |
| Goldene Torpedo-Schärpe | ||
| 27/09 | Stage 2 | 2 |
| 28/09 | General Classification | 8 |
Rider information for 1941
| Rank | 185 |
| Score | 111 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Individual |
No results available in season 1942.
Rider information for 1942
| Rank | 687 |
| Score | 0 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Dürkopp |
| Date | Race | Rank |
| 27/04 | Berlin - Cottbus - Berlin | 19 |
| Grünes Band vom Rhein | ||
| 22/08 | Stage 3 | 1 |
Rider information for 1947
| Rank | 598 |
| Score | 32 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Patria W.K.C. |
| Date | Race | Rank |
| 23/05 | Strassenmeisterschaft von Deutschland | 25 |
Rider information for 1948
| Rank | 1428 |
| Score | 0 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Patria W.K.C. |
| Date | Race | Rank |
| 26/06 | Strassenmeisterschaft von Deutschland | 23 |
| 26/06 | Dortmund Rundfahrt | 10 |
| Quer durch Deutschland | ||
| 20/07 | Stage 10 | 3 |
Rider information for 1949
| Rank | 849 |
| Score | 16 |
| Name | Hermann SIEBELHOFF |
| Country | Germany |
| Team | Patria W.K.C. |