Info
| Last name | Sieberg |
| First name | Marcel |
| Nationality |  Germany |
| Date of birth | 30-04-1982 |
| Age | 43 |
| Place of birth | Castrop-Rauxel |
Monuments
| Year | Milano - San Remo | Tour of Flanders | Paris - Roubaix | Liège-Bastogne-Liège | Il Lombardia |
|---|---|---|---|---|---|
| 2021 | - | 99th | DNF | - | - |
| 2019 | 116th | 63rd | DNF | - | - |
| 2018 | 119th | 58th | 39th | - | - |
| 2017 | 165th | DNF | 24th | - | - |
| 2016 | 166th | 43rd | 7th | - | - |
| 2015 | 116th | 62nd | 36th | - | - |
| 2014 | 92nd | - | DNF | - | - |
| 2013 | 91st | DNF | 24th | - | - |
| 2012 | 104th | 67th | DNF | - | - |
| 2011 | 110th | 77th | 57th | - | - |
| 2010 | - | 23rd | DNF | - | - |
| 2009 | - | 49th | 20th | - | - |
| 2008 | - | 70th | DNF | - | - |
| 2007 | - | DNF | 40th | - | - |
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
 Tour de l'Avenir (2.5) | |||||||
| 08-09 | 5 | Stage 7Metz - Rambervilliers (146.0km) | |||||
| Mainfranken Tour (2.7.2) | |||||||
| 17-06 | 2 | Prologue | |||||
| 30-05 | 13 | Paris-Roubaix U23 (U23) | |||||
 Giro delle Regioni (2.7.2) | |||||||
| 25-04 | 4 | Stage 7 | |||||
| 25-04 | 5 | Prologue | |||||
Teams
Staff
| Year | Team |
|---|---|
| 2025 |  Tudor Pro Cycling Team U23 |
| 2025 | Tudor Pro Cycling Team |
| 2024 | Tudor Pro Cycling Team |
| 2024 | Tudor Pro Cycling Team U23 |
| 2023 | Tudor Pro Cycling Team |
| 2022 |  Team DSM |
| 2022 | Development Team DSM |
| 2022 | Team DSM |
Rider
Victories
| This year | 0 |
| Total | 3 |