The Olympic legend completed the 60-mile route from Glasgow to Edinburgh on Sunday.
Scarlett Sykes, 18, organised a bracing early-morning sponsored run for pupils at Gordonstoun school in Moray.
Flora Gentleman, two, diagnosed with stage four neuroblastoma in April and is now receiving intensive chemotherapy.
Two friends found the animal buried in the snow only to discover it was one of the most endangered mammals in Europe.
The University of Stirling student is raising money for Cardiac Risk in the Young.