[4] He competed in the men's 100 metre backstroke event at the 2020 European Aquatics Championships, in Budapest, Hungary.

He was also part of the team that won a silver in Men's 4 × 100 metre freestyle relay.

Litchfield was a part of the Men’s 4x100m Freestyle Relay team at the 2020 Summer Olympics, narrowly missing out on a placing in the final.

[7][8] At the 2022 World Aquatics Championships held in Budapest, Litchfield won a bronze as in the Men's 4 × 200 metre freestyle relay.

[9] After winning the 100 metres butterfly at the 2024 Aquatics GB Swimming Championships, Litchfield sealed his place at the 2024 Summer Olympics for the relay event.