Her journey started when she was 10 years old – Celia started swimming competitively, and from there, she developed a desire for competing in various sports. Celia was introduced to CrossFit in 2012 by her driving instructor. Celia Mary Hoyles (née French; en 1946) est une mathématicienne britannique, pédagogue 1, 2 et professeure d' enseignement des mathématiques à l' University College de Londres (UCL), à l' Institute of Education (en) (IoE) 3, 4, 5 .