*Club domestic league appearances and goals, correct as of 09:17, 9 May 2023 (UTC) ‡ National team caps and goals, correct as of 23:07, 30 August 2021 (UTC)
Twamley made his debut for Newport County on 8 September 2020 as a second-half replacement for Ryan Haynes in the 1–0 EFL Trophy defeat to Cheltenham Town.[2] In June 2021 he signed his first professional contract with Newport County.[3] On 10 January 2022 Twamley joined Salisbury on loan for the remainder of the 2021-22 season.[4] On 2 August 2022 he joined Pontypridd United on loan until 3 January 2023.[5]
He was released by Newport at the end of the 2022-23 season.[6]
Lewys signed for Merthyr Town on 30 September 2023. [7]
International
Twamley made his Wales Under-18 debut in the 2-0 friendly match defeat against England on 29 March 2021 as a second-half substitute.[8][9] In August 2021 he was called up to the Wales under 19 team.[10]