All available race results Jan Sommer
| Date | Race | Rank |
| Istarsko proljece - Istrian Spring Trophy | ||
| 09/03 | Prologue | 1 |
| 10/03 | Stage 1 | 19 |
| 11/03 | Stage 2 | 94 |
| Tour de Romandie | ||
| 25/04 | Prologue | 111 |
| 26/04 | Stage 1 | 28 |
| 27/04 | Stage 2 | 101 |
| 28/04 | Stage 3 | 104 |
| 29/04 | Stage 4 | 111 |
| 30/04 | Stage 5 | 100 |
| General Classification | 91 | |
| 25/06 | Championnat de Suisse sur route | 25 |
Rider information for 2023
| Rank | 1256 |
| Score | 23 |
| Name | Jan SOMMER |
| Country | Switzerland |
| Team | Elite without contract |
| Date | Race | Rank |
| Volta ao Alentejo | ||
| 20/03 | Stage 1 | 98 |
| 21/03 | Stage 2 | 22 |
| 22/03 | Stage 3 | 12 |
| 23/03 | Stage 4 | 58 |
| 24/03 | Stage 5 | 26 |
| General Classification | 57 | |
| Circuit des Ardennes | ||
| 04/04 | Stage 1 | 67 |
| 05/04 | Stage 2 | 30 |
| 06/04 | Stage 3 | 112 |
| 07/04 | Stage 4 | 85 |
| General Classification | 79 | |
| Tour de Romandie | ||
| 23/04 | Prologue | 16 |
| 24/04 | Stage 1 | 21 |
| 25/04 | Stage 2 | 85 |
| 26/04 | Stage 3 | 129 |
| 27/04 | Stage 4 | 123 |
| 28/04 | Stage 5 | 22 |
| 28/04 | General Classification | 78 |
| Tour de Suisse | ||
| 09/06 | Stage 1 | 22 |
| 10/06 | Stage 2 | 113 |
| 11/06 | Stage 3 | 88 |
| 12/06 | Stage 4 | 115 |
| 13/06 | Stage 5 | 146 |
| 14/06 | Stage 6 | 124 |
| 15/06 | Stage 7 | 130 |
| 16/06 | Stage 8 | 130 |
| 16/06 | General Classification | 126 |
| Deutschland Tour | ||
| 25/08 | General Classification | 92 |
| 18/09 | G.P. de Wallonie | 124 |
| 20/09 | Kampioenschap van Vlaanderen - Koolskamp | 105 |
| 22/09 | Paris - Chauny | 121 |
| 06/10 | Paris - Tours | 131 |
Rider information for 2024
| Rank | 867 |
| Score | 47 |
| Name | Jan SOMMER |
| Country | Switzerland |
| Team | Elite without contract |
| Date | Race | Rank |
| 08/03 | Grand Prix Criquielion | 43 |
| 23/03 | G.P. Slovenian Istria | 38 |
| 30/03 | La Roue Tourangelle | 72 |
| 18/04 | Classic Grand Besançon Doubs | 83 |
| 20/04 | Tour du Doubs | 69 |
| Vuelta a Asturias | ||
| 24/04 | Stage 1 | 68 |
| 25/04 | Stage 2 | 35 |
| 26/04 | Stage 3 | 71 |
| 27/04 | Stage 4 | 57 |
| General Classification | 60 | |
| 18/05 | Rund um Köln | 21 |
| Sibiu Cycling Tour | ||
| 03/07 | Stage 1 | 17 |
| 04/07 | Stage 2 | 96 |
| 05/07 | Stage 3 | 91 |
| 06/07 | Stage 4 | 6 |
| General Classification | 79 | |
| 21/09 | G.P. d'Isbergues | 97 |
Rider information for 2025
| Rank | 3797 |
| Score | 2 |
| Name | Jan SOMMER |
| Country | Switzerland |
| Team | MyVelo Pro Cycling Team |
| Date | Race | Rank |
| 01/02 | G.P. Cycliste de Marseille - La Marseillaise | 106 |
| Etoile de Bessèges | ||
| 07/02 | Stage 4 | 14 |
| 08/02 | General Classification | 26 |
| 21/02 | Classic Var | 40 |
| 22/02 | Tour des Alpes-Maritimes et du Var | 98 |
| 03/03 | Ename Samyn Classic | 16 |
| 29/03 | La Roue Tourangelle | 51 |
| 03/05 | Famenne Ardenne Classic | 76 |
| 16/05 | Tour du Finistère | 36 |
| 14/06 | Grosser Preis Gippingen | 73 |
| Tour du Limousin | ||
| 21/08 | General Classification | 95 |
| Tour du Poitou-Charentes | ||
| 25/08 | Stage 1 | 15 |
| 26/08 | Stage 2 | 20 |
| 28/08 | Stage 4 | 13 |
| 28/08 | General Classification | 21 |
Rider information for 2026
| Rank | 1314 |
| Score | 11 |
| Name | Jan SOMMER |
| Country | Switzerland |
| Team | Elite Fondations Cycling Team |