All available race results Karl Bosshard
| Date | Race | Rank |
| 26/08 | World Championships Time Trial (Ama+Pro) | 29 |
Rider information for 1931
| Rank | 413 |
| Score | 40 |
| Name | Karl BOSSHARD |
| Country | Switzerland |
| Team | Individual |
| Date | Race | Rank |
| 24/04 | Paris - Tours | 33 |
| 26/06 | Nord-West Schweizer Rundfahrt | 15 |
Rider information for 1932
| Rank | 425 |
| Score | 41 |
| Name | Karl BOSSHARD |
| Country | Switzerland |
| Team | Individual |
| Date | Race | Rank |
| 15/05 | Meisterschaft von Zürich | 7 |
| 07/08 | Tour du Lac Léman | 9 |
| Tour de Suisse | ||
| 28/08 | Stage 1 | 50 |
| 29/08 | Stage 2 | 21 |
| 30/08 | Stage 3 | 25 |
| 01/09 | Stage 4 | 8 |
| 02/09 | Stage 5 | 8 |
| 02/09 | General Classification | 32 |
Rider information for 1933
| Rank | 190 |
| Score | 150 |
| Name | Karl BOSSHARD |
| Country | Switzerland |
| Team | Individual |
| Date | Race | Rank |
| 10/06 | Championnat de Suisse sur route | 4 |
| 24/06 | Nord-West Schweizer Rundfahrt | 13 |
| Tour de Suisse | ||
| 25/08 | Stage 1 | 34 |
| 26/08 | Stage 2 | 12 |
| 27/08 | Stage 3 | 14 |
| 29/08 | Stage 4 | 3 |
| 30/08 | Stage 5 | 18 |
| 31/08 | Stage 6 | 28 |
| 01/09 | Stage 7 | 20 |
| 01/09 | General Classification | 8 |
Rider information for 1934
| Rank | 161 |
| Score | 205 |
| Name | Karl BOSSHARD |
| Country | Switzerland |
| Team | Individual |
| Date | Race | Rank |
| Tour de Suisse | ||
| 24/08 | Stage 1 | 45 |
| 25/08 | Stage 2 | 20 |
| 26/08 | Stage 3 | 13 |
Rider information for 1935
| Rank | 1108 |
| Score | 3 |
| Name | Karl BOSSHARD |
| Country | Switzerland |
| Team | Individual |