All available race results Fritz Diederichs
| Date | Race | Rank |
| 09/05 | Rund um die Hainleite | 11 |
| Deutschlandrundfahrt | ||
| 06/06 | Stage 1 | 5 |
| 07/06 | Stage 2 | 1 |
| 08/06 | Stage 3 | 4 |
| 10/06 | Stage 4 | 8 |
| 11/06 | Stage 5 | 8 |
| 15/06 | Stage 8 | 6 |
| 19/06 | Stage 11 | 8 |
| 20/06 | General Classification | 3 |
| Tour de Suisse | ||
| 31/07 | Stage 1 | 22 |
| 01/08 | Stage 2 | 12 |
| 03/08 | Stage 4 | 30 |
| 04/08 | Stage 5 | 35 |
Rider information for 1937
| Rank | 174 |
| Score | 224 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Phänomen |
| Date | Race | Rank |
| 03/04 | Berlin - Cottbus - Berlin | 1 |
| 29/05 | Harz Rundfahrt | 1 |
Rider information for 1938
| Rank | 224 |
| Score | 170 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Phänomen |
| Date | Race | Rank |
| Großdeutschlandfahrt | ||
| 03/06 | Stage 3 | 5 |
| 06/06 | Stage 5 | 4 |
| 09/06 | Stage 8 | 10 |
| 19/06 | Stage 16 | 2 |
| 21/06 | Stage 17a | 1 |
| 24/06 | General Classification | 21 |
Rider information for 1939
| Rank | 258 |
| Score | 141 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Phänomen |
| Date | Race | Rank |
| Grünes Band vom Rhein | ||
| 20/08 | Stage 1 | 3 |
| 21/08 | Stage 2 | 1 |
| 23/08 | Stage 4 | 4 |
| 24/08 | Stage 5 | 6 |
| 25/08 | General Classification | 2 |
| 19/10 | Strassenmeisterschaft von Deutschland | 10 |
Rider information for 1947
| Rank | 229 |
| Score | 198 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Bismarck |
| Date | Race | Rank |
| 23/05 | Strassenmeisterschaft von Deutschland | 9 |
| Grünes Band der IRA | ||
| 19/09 | Stage C2 | 10 |
| 20/09 | Stage 2 | 6 |
| 21/09 | Stage 3 | 5 |
| 25/09 | Stage 5 | 4 |
| 26/09 | General Classification | 5 |
Rider information for 1948
| Rank | 295 |
| Score | 156 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Bismarck |
| Date | Race | Rank |
| 01/05 | Rund um Köln | 8 |
| 22/05 | G.P. Weinstrasse | 15 |
| Goldene Torpedo-Schärpe | ||
| 04/06 | Stage 1 | 3 |
| 06/06 | Stage 3 | 8 |
| 06/06 | General Classification | 3 |
| 12/06 | Quer durchs Bayerische Hochland | 20 |
| 26/06 | Strassenmeisterschaft von Deutschland | 22 |
Rider information for 1949
| Rank | 319 |
| Score | 135 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Dürkopp |
| Date | Race | Rank |
| 21/05 | Bayerische Rundfahrt | 19 |
| 18/06 | Finale Meisterschaft von Deutschland | 14 |
| 18/06 | Strassenmeisterschaft von Deutschland | 23 |
| Deutschlandrundfahrt | ||
| 21/08 | Stage 9 | 4 |
| 25/08 | Stage 12 | 4 |
| 26/08 | Stage 13a | 9 |
| 31/08 | General Classification | 34 |
Rider information for 1950
| Rank | 563 |
| Score | 51 |
| Name | Fritz DIEDERICHS |
| Country | Germany |
| Team | Dürkopp |