As a teenager, Pooley competed at both the World Junior Championships and European Junior Championships, failing to reach the final. In 2012, she improved her best from 1.86m, first to 1.88 m indoors then to 1.90m, which she cleared at the Bedford Games in June. She competed at that years European Championships in Helsinki, where she was eliminated in the qualifying round with a best of 1.78m. In July 2013, she finished fourth in the final at the European Under 23 Championships in Tampere, clearing 1.90m. A month later, she improved her PB to 1.91m.
Pooley had the best season of her career to date in 2014. In June, she equalled her PB of 1.91m, before going on to win the UK Championships later the same month with 1.90m. Then in August, she won a silver medal at the Commonwealth Games in Glasgow, with a new best of 1.92m. Three weeks later, she broke the UK outdoor record, when she improved her best by 4cm to 1.96m in Eberstadt, Germany.
Pooley graduated from the University of Nottingham in 2014.