Jack is the son of Olympic rower Peter Beaumont.[2]
Beaumont started competing as part of the GB Rowing Team at the 2010 World Junior Championships in Racice, where they finished fourth. In 2014, Beaumont was a World U23 bronze medallist in men's double scull.[1]
Beaumont was involved in an accident in 2015, which fractured several vertebrae. He missed being selected for the 2016 Summer Olympics, but days before the Games started, he was chosen to replace Graeme Thomas who had fallen ill. He competed in the men's quadruple sculls event, and finished in fifth place.[3][4]
In 2017, he won a silver medal at the World Rowing Championships in Sarasota, Florida, as part of the quadruple sculls with Jonathan Walton, John Collins and Graeme Thomas.[5]
At the 2020 Summer Olympics held in 2021 in Tokyo, Beaumont won a silver together with Harry Leask, Tom Barras and Angus Groom in the Men's quadruple sculls.[6] Beaumont retired from international rowing after the Olympic Games.[4]
