In 2013, she earned two gold medals at the European Junior Championships in Rieti, winning the 200m in 23.29, before joining Yasmin Miller, Steffi Wilson and Desiree Henry to win the 4 × 100m relay and break the UK junior record. The British squad originally finished fourth in the final but were promoted to the bronze medal after the disqualification of the French team. Asher-Smith was shortlisted for the 2013 BBC Young Sports Personality of the Year.