[2] Walcott-Nolan won the 3000m in the European Athletics Team Championships (Poland) in March 2021.
[6] On 18 February 2024, she was runner-up at the 2024 British Indoor Athletics Championships in Birmingham, over 1500 metres.
[7] She was selected for the 2024 World Athletics Indoor Championships in Glasgow where she qualified for the final of the women's 1500 metres race.
Walcott-Nolan ran and competed in the second of two Heats; she finished second with a time of 4:06.73 minutes and qualified to the semi finals.
[16] On 31 December 2024, she pipped compatriot Poppy Tank to win the Battersea New Years Eve 5k in London.