Date 04/07/2026 - 05/07/2026
Time @ 7.45am- 3.00pm
Location View map
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Take on one of the most technically demanding events on our calendar — and enjoy every muddy, laugh-out-loud moment along the way. This is a big, bold challenge where every obstacle is up-scaled for the occasion, packed with playful twists, sneaky surprises, and plenty of opportunities to get stuck in… quite literally. The ever-changing (and wonderfully muddy) terrain means no two steps feel the same, keeping things exciting from start to finish.

The course winds through the stunning grounds of Belvoir Castle, serving up scenic views that make the effort worthwhile — even if you’re covered head to toe in mud. Expect rolling hills, leg-burning climbs, and fast, slippery descents that are as fun as they are challenging. Between the climbs, you’ll splash your way along muddy tracks, laughing with teammates, helping each other through the trickier sections, and embracing the chaos that only a Tough Mudder course can deliver.

Whether you’re pushing for a personal best or just here for the buzz, the atmosphere is supportive, the obstacles are memorable, and the sense of achievement at the finish line is huge. Come ready to get muddy, have fun, and take on one of the most unforgettable events of the season.

Costs to run for Rainbows:

Saturday 4 July

5km Course – 12+ Obstacles
  • Entry fee is £20
  • Minimum fundraising target is £250* (excluding Gift Aid)

Sign up now! 

15km Course – 20+ Obstacles
  • Entry fee is £30
  • Minimum fundraising target is £300* (excluding Gift Aid)

Sign up now! 

Sunday 5 July

5km Course – 12+ Obstacles
  • Entry fee is £20
  • Minimum fundraising target is £250* (excluding Gift Aid)

Sign up now! 

15km Course – 20+ Obstacles
  • Entry fee is £30
  • Minimum fundraising target is £300* (excluding Gift Aid)

Sign up now! 

What’s included as a Rainbows runner?

When you take part in Tough Mudder for Rainbows, we’ll be with you every step of the way to help with your fundraising. You will receive:

  • A dedicated member of the fundraising team to support you to the finish line and beyond
  • A fundraising guide, as well as fundraising advice, hints and tips in the build up to the event
  • A branded Rainbows top for race day
  • Access to a range of Rainbows fundraising materials (collection boxes, posters, balloons etc.) to make any events you hold look amazing

Why run for Rainbows?

By running for Rainbows you will be helping to support babies, children, young people and their families living with life-threatening and life-limiting conditions, here in the East Midlands.

We support every baby, child and young person to fulfil their potential, and help families make the most of every precious moment, while capturing memories and keepsakes to treasure. We’re here for the whole family, offering comfort and compassion during tough times, providing the highest level of professional care until the end, and support after. Simply put, we’re here to brighten short lives, and support families, wherever they are.

Every penny you raise, will help support our vital work here at the Hospice, in the local community and in hospitals.

If you have any questions about running for Rainbows please let us know by calling 01509 974312 or Email our Events Team.