At NU Limits, we are on a mission to redefine what’s possible, help break barriers, uncover untapped potential, and elevate your mind, body, and spirit beyond the ordinary.
Our running events are more than just races - they’re transformative journeys. Whether you're new to the running world, chasing personal records, or forging a new physical and mental capability - our events are your gateway to reaching new heights, achieving breakthroughs, and embracing the extraordinary.
Are you ready to:
- Test your boundaries and unlock new levels of performance?
- Join a passionate community that thrives on shared adventures?
- Discover fulfilment and achieve a transcendent state of mind?
Sign up today, and start your journey toward strength, transcendence, and limitless achievement with NU Limit's.
YOUR ADVENTURE AWAITS.
8-hour Tentsmuir Challenge - 18/10/2025
Complete as many 4.366 mile loops as possible in an 8 hour time limit. Cut off time for beginning a final lap will be 7:59:59 hours - cut off time for final lap completion will be 9:00:00 hours. Runners will be provided with a 'clip card' to be punched by an event marshal upon completion of each lap to track number of laps completed.
3 Laps = Half Marathon
6 Laps = Full Marathon
7+ Laps = Ultra Marathon
Route: The route will be all on trail paths around Tentsmuir Forrest with 85 ft of ascent per lap (see page's GPX file for full details).
EVENT TIMINGS
Race registration: 8am – 8:50am
Race briefing: 8:50am
Race start: 9am
Race finish: 6pm (or until participants fail to complete any more laps)
Award presentation: 6pm-6:10pm (or 0-10 mins following last runner completing final lap)
Event close: 6:10pm (or 10 mins following last runner completing final lap)
PARKING
***MUST BRING CASH***
Tentsmuir operates a pay barrier system that is coin-operated only. Please come prepared with cash as there are no local facilities for paying by card. The charge to park at Tentsmuir is £2 for the day.
BASECAMP
Event basecamp is indicated on the attached gpx map by a green pin. Basecamp can be used for kit storage - however, NU Limits Ltd will not take liability for lost kit. There will be two 6 x 3 meter Gazebos avaialable for kit storage. Participants are encouraged to bring suitable storage boxes/bags for their race equipment, nutrition, and post race clothing. If participants wish to bring their own gazebo/tent, please contact
NULimitsRunning@outlook.com to facilitate.
Spectators are welcome at Basecamp.
MANDATORY KIT LIST
- Sufficient nutrition/hydration for event duration (minimum 500ml fluid per hour and minimum 60g-90g of carbohydrates per hour of running)
- Appropriate clothing to ensure resilience against weather conditions
- Dry clothes for end of event
- Mobile phone
VOLUNTEER
Our fantastic volunteers make our events possible! We'd love to welcome you into our motivated and enthusiastic team. Whether curious about entering a future event and looking to see what our races involve, or spectating and supporting a loved one, your efforts will have a direct and positive impact on the experience of all competitors and event organisers.
Your TIME
You will be asked what times suits you best and we will contact you individually to discuss the best plan. Volunteer time slots can range from 5hrs to full duration of event (8am-7pm)
Your ROLE
All tasks given to volunteers are straightforward, safe and well supported. Tasks are allocated individually based on your experience and requirements. Role briefing/training will be delivered one week prior to the event. Roles include:
- Start/finish Line Staff
- Route marshalling/Aid table support
- Event Registration
- Car park support
If you are interested in volunteering, please contact
NULimitsRunning@outlook.com and we will endeavour to respond as soon as possible.