Youth, college and amateur Allan spent time with the
Sunderland academy, before moving to the United States to play
college soccer at the
University of Charleston in 2019. He made 17 appearances, scoring 3 goals and tallying 3 assists for the Golden Eagles during their 2019 season. In 2019, Allan also appeared for
NPSL side
Asheville City.
Professional On 2 April 2021, Allan signed with
USL Championship side
Atlanta United 2. He made his debut on 24 April 2021, starting against
Louisville City. Atlanta declined his contract option following the 2021 season. Allan joined
Memphis 901 FC on 21 January 2022. He made his debut against
Pittsburgh Riverhounds on 13 March 2022. He scored his first goal for the club against
Tampa Bay Rowdies on 28 April 2022. On 20 December 2022, it was announced that Allan would join
Charleston Battery for their 2023 season in the USL Championship on a multi-year contract. ==Honors==