It was an unofficial World record for a '55 year old' woman. She did that in the Oxford Half-Marathon, that attracted a large field, on the 13th of October, Karima Harris ran 1:19.02. The official World mark is 1:19.38 for a Woman 55-59' and done by Silke Schmidt of Germany who ran her time in Holland in 2015.
Karima Harris has been a Highgate Harrier since the very end of 2023.