|Born||15 August 1995|
|Current team||Team Jumbo–Visma|
|2014–2015||Rabobank Development Team|
He rode at the 2014 UCI Road World Championships in the U23 category. In October 2015 it was announced that he would join Team Giant–Alpecin from 2016 on an initial three-year contract. He was named in the startlist for the 2017 Vuelta a España, where he was forced to leave with illness.
He started the season by racing in the Tour Down Under, where he finished in 15th overall and was 24 seconds behind the winning time. Oomen led Team Sunweb at the Volta ao Algarve. In May 2018, he was named in the startlist for the Giro d'Italia, which he finished in ninth place, while riding in support for Tom Dumoulin.
- 1st Overall Grand Prix Rüebliland
- 1st Young rider classification
- 1st Stage 3 (ITT)
- 1st Time trial, National Junior Road Championships
- 2nd Overall Junior Tour of Wales
- 5th Overall Le Trophee Centre Morbihan
- 10th Overall Grand Prix Rüebliland
- 1st Mountains classification, Tour de Bretagne
- 3rd Paris–Tours Espoirs
- 8th Overall Tour des Fjords
- 1st Overall Rhône-Alpes Isère Tour
- 1st Paris–Tours Espoirs
- 2nd Overall Tour des Pays de Savoie Mont-Blanc
- 1st Mountains classification
- 1st Young rider classification
- 1st Stages 2 & 4 (ITT)
- 2nd Overall Tour Alsace
- 3rd Flèche Ardennaise
- 4th Overall Istrian Spring Trophy
- 4th Overall Tour de l'Avenir
- 8th Overall Tour de l'Ain
- 8th Liège–Bastogne–Liège Espoirs
- 1st Overall Tour de l'Ain
- 3rd Overall Critérium International
- 10th Overall Tour du Poitou-Charentes
- 1st Team time trial, UCI Road World Championships
- 6th Tre Valli Varesine
- 7th Overall Tour de Pologne
- 9th Overall Tour of California
- 1st Young rider classification, Volta ao Algarve
- 2nd Team time trial, UCI Road World Championships
- 7th Overall Tour de Suisse
- 9th Overall Giro d'Italia
- 9th Overall Tour de Pologne
- 5th Overall Volta ao Algarve
- 9th Overall Tirreno–Adriatico
General classification results timelineEdit
|Grand Tour general classification results|
|Tour de France||—||—||—||—||—||—||—|
|Vuelta a España||—||DNF||—||—||—||18||IP|
|Major stage race general classification results|
|Volta a Catalunya||—||—||—||—||NH||—||10|
|Tour of the Basque Country||36||19||—||DNF||25||—|
|Tour de Romandie||—||—||—||—||—||—|
|Critérium du Dauphiné||—||14||—||—||—||—||—|
|Tour de Suisse||38||—||7||—||NH||8||DNF|
|—||Did not compete|
|DNF||Did not finish|
- "Team Sunweb confirm 2019 men's and women's rosters". Cyclingnews.com. Immediate Media Company. 23 November 2018. Retrieved 5 January 2019.
- "Team Sunweb". UCI.org. Union Cycliste Internationale. Archived from the original on 3 January 2020. Retrieved 3 January 2020.
- "Jumbo-Visma". UCI.org. Union Cycliste Internationale. Archived from the original on 2 January 2021. Retrieved 2 January 2021.
- "Sam Oomen bolsters Jumbo Visma's climbing contingent with three-year contract". Cyclingnews.com. Future plc. 25 August 2020. Retrieved 25 August 2020.
- "Transfer news: Changes at LottoNL-Jumbo". cyclingnews.com. 2 October 2015. Retrieved 2 October 2015.
- "2017 > 72nd Vuelta a España > Startlist". ProCyclingStats. Retrieved 17 August 2017.
- Ryan, Barry (28 May 2018). "Oomen's stock rises after impressive Giro d'Italia". Cyclingnews.com. Retrieved 28 May 2018.
- "Volta ao Algarve: Sunweb opt for youth to start 2018 European season - Cyclingnews.com". Retrieved 19 February 2018.
- "2018: 101st Giro d'Italia: Start List". ProCyclingStats. Retrieved 3 May 2018.
- "Our eight riders for the Vuelta a Espana". Team Jumbo-Visma. 15 August 2022. Retrieved 20 August 2022.