Take on a muddy obstacle course for Chailey Heritage Foundation!Mud Monsters Run is an award winning, fun, mud and obstacle race that will not disappoint.Whether you choose the 3.5km, 5km or 10km route you will be taken on an amazing fun journey across muddy fields, through woods, washing off in water sections, navigating through mud craters, laughing your way through muddy bogs, with plenty of obstacles and many more muddy surprises along the way.There are so many obstacles, both natural and manmade, that you never have to run or walk very far before taking on a new challenge. People of all abilities and experience are welcomed, whether you regularly participate in obstacle races or are thinking of making this your first one, come and join in the fun. "3rd time I've done the run and it gets better, muddier and more fun every time" Click here to run for Team Chailey About the EventWatch the highlights video from last year's race to see what you can expect! See more of the event here! "My first ever obstacle run and I absolutely loved it! Brilliantly organised and set up. Will 100% be doing it again next year. Thank you to all the team involved" What you'll getPersonalised Chailey Heritage Foundation running t-shirt / vest (that will get muddy!)Support throughout your fundraising from a dedicated fundraiserChailey handwaving flags for your supporters to wave on race dayThe opportunity to publicise your fundraising on our social mediaFree photos that can be downloaded post-eventOfficial medal from the race organisers Already got your own place?If you’ve already secured your spot in Mud Monsters 2026, why not fundraise for Chailey? Get in touch with us today! Contact the Fundraising Team Why join Team Chailey?Our charity is a thriving community of support for children, young people and families living with complex disabilities. We believe that each child and young person, regardless of their disability, should have every opportunity to explore their potential and live their best life.Your support will mean that we can provide more opportunities and experiences to children and young adults with complex disabilities. Key information Extra information Extra information can be found here - https://www.mudmonstersrun.co.uk/ Get in Touch Have any questions or interested in running for Team Chailey? Get in touch with the fundraising team today who are here to help you every step of the way Click here to run for Team Chailey!