The 18-year-old from Peckham rode Haverland in the Magnolia Cup, a women-only charity race, and beat the likes of Olympic champion cyclist Victoria Pendleton and model Vogue Williams.
Mellah raced less than four months after first sitting on a racehorse The charity race, a five-furlong and 110-yard flat race, was held on the third day of the meet to raise funds for Wellbeing of Women