Event Volunteer – Portsmouth Pretty Muddy 5k 2026 – 9th May 2026 You can make a big difference in just a few hours.  We’re looking for enthusiastic volunteers to support our next Cancer Research UK  Pretty Muddy 5k event in Portsmouth, on the 9th May 2026 .   Whether you’re coming solo, bringing a friend or part of a larger group, your support means our event can run smoothly and raise money to fund lifesaving research. …