31 Jan–1 Feb 2026 118 days to go! #RunShow Tickets

Susan Mansfield 

Hi, I’m Susan – one of the founders of Spider Runners.

I started running to get fit for my other passion: martial arts. But before long, running stopped being just a means to an end, and became a passion in its own right.

 I began on the trails, and I still love them – being out in nature is one of the best tonics out there.

After years of running 5Ks and 10Ks, I got into the London Marathon. Then Scott Jurek – or rather, his first book – inspired me to take on an ultra. I even gave a half marathon a go, just to round up the distances. Eventually, I found my comfort zone: ultras. I’m definitely built for distance, not speed.

Four years ago, my better half, Mike Bullock, and I, set up Spider Runners. We saw a need for a safe and inclusive running community – one that promoted trail running through friendship and fun, not competitiveness. It grew faster than we ever imagined. It’s become a place where lovers of trail running, cake, and a right good chuckle come together in perfect harmony.

Now a qualified Fell, Trail, and Mountain Leader with quite a few ultras under my belt, my love for the great outdoors is stronger than ever. One of my absolute favourite things is taking our Spider Runners out on new trails and showing them the very best the UK has to offer. Whether it’s coastal paths, forest routes, or wild mountain adventures, there’s something special about exploring it all together. Mike and I love planning routes that are not just scenic but full of character – the kind that leave you muddy, grinning, and already thinking about the next one. Sharing these experiences with our community is what it’s all about.