PitPat, the UK’s leading dog GPS and activity tracker brand, has announced its sponsorship of runner Megan Boxall as she attempts to become the fastest woman to run the entire coast of mainland Britain – 200 marathons in 200 days.

The 5,240-mile challenge, which began on 18 October 2025 at Sizewell Beach in Suffolk, will see Megan running the equivalent of a marathon every day for nearly seven months.

Along the way, she’ll be joined for parts of the route by her Border Collie, Shadow, a rescue from Dogs Trust, who’ll be wearing her PitPat GPS tracker to monitor her activity and ensure her safety.

The partnership highlights PitPat’s commitment to making dogs happier, healthier and safer, recognising the importance of active lifestyles shared between owners and their dogs and showcasing the strength of the human-animal bond.

“Megan’s determination, courage and partnership with Shadow perfectly capture what PitPat stands for — enjoying every adventure with your dog and keeping them safe while you do it,” said Andrew Nowell, CEO of PitPat. “We’re thrilled to support Megan and Shadow on this incredible journey and proud that our technology will play a role in keeping Shadow visible and protected throughout.”

Megan is undertaking the challenge to raise money for Samaritans, whose support helped her during a difficult time with her mental health last year.

 She was also diagnosed with Multiple Sclerosis (MS) in 2024, but remains determined to push through the physical and mental challenges of the run.

Supporters can follow Megan and Shadow’s journey and donate to their fundraising campaign for Samaritans via JustGiving.