Most charity marathons use mental health as a backdrop. M4 was built the other way round. Here's why and why it changes everything about how the challenge works.

Looking for a charity marathon challenge in 2026? Here are the best options — from single-day virtual events to month-long flexible marathon challenges for every schedule.

Thinking about a virtual marathon in 2026? Here's how it compares to a flexible marathon challenge and why the difference matters more than you think.

Think a marathon sounds impossible around a busy working life? Think again. 26.2 miles across 31 days works out at less than one mile a day and we've built three realistic plans to fit around your schedule, your shifts, and your life. Here's how to plan your October.

Yes, you can walk a marathon and here's exactly how to do it. Discover how the M4’s flexible marathon challenge 2026 makes 26.2 miles achievable for everyone.