Berkshire-based Isabelle Lesinski chose to take on the challenge for four-year-old Gideon McCabe who has a brain tumour.
Isabelle donned fancy dress and, with the help of her mother Natasha, rode her Welsh pony Bonnie further than ever before.
They completed the ride last month (28 November) and raised £255 for Gideon’s treatment and other causes his family are supporting.
“Isabelle was at preschool with him and they were good buddies. We recently moved and she misses her little chum and often asks how he is.
“So we decided to do a fancy dress ride to raise some money for him.”
Isabelle and Bonnie dressed up as a red arrow for the ride and were joined by other liveries from their yard.
“The owners of New Barn Farm very generously donated £100 to the cause — we were overwhelmed,” said Natasha.
“Dressed as a Red Arrow we were quite conspicuous — a car stopped us asking what were we doing and he later sponsored us as well.
“Isabelle handed out well done rosettes by Hobbitts Rosettes when the ride was finished as a thank you to our friends for their support.”
The Lesinskis are planning another sponsored ride in the summer.