Anna Boniface

Anna Boniface is a Saucony endurance athlete specialising in cross country and road running. After a breakthrough at the London Marathon in 2017 running 2.37, Anna was selected to represent England at the Toronto Waterfront Marathon. Unfortunately, Anna’s international debut ended with a “DNF” from a stress fracture during the race. A subsequent diagnosis of Relative Energy Deficiency in Sport (RED-S) with years of amenorrhea, overtraining and under fuelling resulting in reduced bone density has the underlying cause of her injury.

Anna took a year out of competitive running to focus on her health. With guidance from a sports medicine doctor, gynaecologist, dietitian and her coach, Anna has made positive changes to her nutrition, psychological relationship with training, recovery and fuelling. Alongside hormone replacement therapy and a strength and conditioning routine, Anna’s bone density has improved and her periods have returned.

She has now returned to competition with the aim to return to international marathon running. Anna is an ambassador for “Train Brave” campaigning for better awareness of RED-S and eating disorders in sport. She combines her training alongside working as a physiotherapist for Flint House Police Rehab Centre in Goring.

Anna Boniface
Anna Boniface
Physiotherapist and Endurance Athlete


Anna Boniface will be presenting at: