Bettamer began his career with
Arsenal, before moving to
Queens Park Rangers at under-11 level. Bettamer later joined
Fulham at under-14 level. Bettamer was unable to hold down a first team spot with the
Conference Premier side and joined
Bedfont Town on loan before being released in March 2012. He then spent the remainder of the season with
North Greenford United. before trials at
Dagenham & Redbridge, and
Maidenhead United. He then joined
Al-Ahly (Benghazi) in Libya on a three-year contract, with whom he reached the quarter-finals of the
CAF Champions League. After it expired, he then joined
Staines Town, with whom he scored 42 goals in 89 games. He signed a pre-contract agreement with
Stevenage in the summer of 2018, but with no contract on the table he joined
Braintree Town on a non-contract basis, before a move to
Salford City fell through.
Barnet Bettamer signed for
Barnet on 9 November 2018. Two days later Bettamer made his debut on 11 November 2018 in the
FA Cup against
League One club
Bristol Rovers which finished 1–1 and required a replay. His National League debut for Barnet came in the away game against
Hartlepool United helping the team to a 3–1 win. Subsequently Bettamer was then loaned out to
Welling United and
Hemel Hempstead Town.
Aldershot Town He signed for
Aldershot Town on a free transfer from Barnet in October 2019. On 26 February 2022, the loan was extended for a further month. Bettamer was released by the club at the end of the
2021–22 season.
Hayes & Yeading return In July 2022, Bettamer returned to Hayes & Yeading United. In November 2022, he joined
Concord Rangers on loan, a deal that was later extended until the end of the season. On 2 June 2023, Bettamer joined
Chelmsford City on loan. On 31 January 2024, after five goals in 21 appearances in all competitions for Chelmsford, Bettamer was recalled by Hayes & Yeading.
Return to Libya In August 2024, Bettamer returned to Libya to join
Asswehly. In February 2025 he joined
Al Tahaddy.
Return to England Bettamer signed for
Hanwell Town for the 2025–26 season. ==International career==