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The CALKE OUTDOOR WEEKENDER (COW) is a brand-new, weekend long event inspired by the great outdoors, organised by Peak Running in partnership with the National Trust at Calke and the National Forest. Timed to coincide with the start of the annual National Forest Walking Festival, the event will welcome people of all abilities to get active and reconnect with nature in the Calke estate and surrounding countryside of the National Forest. 
On each of the three days there will be a main feature event based at the COW arena on the meadow next to Calke Abbey itself. Simultaneous to these will be a host of other activities to get involved in, with something for all the family. Full details of the entire programme will be available soon.
If you want to make a weekend of it, camping is available at the nearby Whistlewood Common. For details and to book your pitch click HERE.
The FRACTURED MARATHON - Friday 15th May, 19:00 to midnight  
The main feature on the Friday evening will be the Fractured Marathon, an exciting and unique running event for solo runners or teams that was a smash hit with runners when it was first held in 2019. The innovative format creates an electric atmosphere and is as much a Friday night running party as a race! There will be 10 timed laps around a scenic 2.6-mile course, which will start every half hour on the half hour.

Teams, or solo runners, can take part in as many or as few of the 10 laps as they like. For runners, solo and team, to be eligible to run the next lap they must be back before it starts. Otherwise they will have to wait for the next start time to re-join the game. So, to remain in with chance of completing a full marathon, each loop must be completed within half an hour.
Full details can be found HERE.
The COW's BIG CHALLENGE - Saturday 16th May, 08:00 to 18:00
The COW’s Big Challenge provides participants the opportunity to run, jog, walk or skip their chosen distance around the wonderful South Derbyshire countryside within the National Forest.
The options to choose from are:
Ultra: 40 Miles
Marathon: 26 Miles
Half Marathon: 13 Miles
Calf 6 Miles
Calf 3 Miles

There will be a number of different routes exploring different parts of the Calke estate and the surrounding countryside. Each route will start and finish in the main COW arena on the meadow next to the Abbey, with the number of different routes you need to complete depending on the distance of the challenge you choose; from 6 routes for the 40-mile ultra to just one for the ‘Calf 3’.

Before, after or even in-between completing routes, there will be plenty of other things to get involved in back at Calke. These include yoga, natural movement workshops, inspirational talks, or just relaxing with some great food.

Full details of the COW's Big Challenge can be found on it's page HERE

The CALKE EXPLORER - Sunday 17th May, 09:00 to 12:30  
The Calke Explorer is the last of the three main COW events.  It is an orienteering type trail event for all abilities. Participants will navigation their way around the spectacular Calke estate to find a series of checkpoints at their own pace, using a map they will be given at the start line.
Start times will be staggered so you can't just follow the person(s) in front, but you can opt to team up with friends, club-mates of family members.
Full details of the Calke Explorer can be found on it's page HERE

OTHER ACTIVITIES - all weekend 
Throughout the weekend there will be a variety of other activities taking place alongside the above featured events. These include:
  • Guided family & wildlife walks
  • Natural Movements Workshops
  • Inspirational Talks
  • Yoga 
  • & More


Below is the timetable of activities.  Download pdf here
PLEASE NOTE: The schedule for activities and talks is currently PROVISIONAL and subject to change/confirmation. Lot os items yet to be added.
Below are details are the prices applicable to COW events. On the Saturday and Sunday, entry to the feature events includes general entry to Calke park and gardens. If you are a Natural Trust member the entry fee to the park will be deducted from your entry, but you will need to produce your membership card on the day. 

Event Information


The Calke Outdoor Weekender is organised by Peak Running, in partnership with the National Trust at Calke and the National Forest Company. Timed to coincide with the opening weekend of the annual National Forest Walking Festival and inspired by the great outdoors, the aim is to welcome people of all abilities to get active and reconnect with nature in the wonderful Calke estate and the surrounding countryside.


On-line entries will go on sale in February and close at midnight on 13th May 2020 or earlier if the capacity is reached. If there are any remaining places they will be availabe for sale on the day of the event, subject to a small supplement. Prices are as detailed above. The Fractured Marathon is limited to 300 places, spilit equally across the solo and team categories. The COW's Big Challenge and Calke Explorer have 100 places available in each distance. By purchasing an entry you agree to our general terms and conditions which can be found at the bottom of this page and the event specific terms in the 'taking part' section of this page.

What's Included?

For those taking part in one of the feature events:

  • Participation in a event in a fantastic location

  • Detailed results, including intermediate check-point splits where applicable

  • Comprehensive event handbook

  • Access to a detailed route descriptions (COW's Big Challenge)

  • GPX file of the route (COW's Big Challenge)

  • Professional medical support

  • Option to purchase a high quality event technical t-shirt (order when entering)


The event in based in the wonderful Calke Park in South Derbyshire.

The base for the race and event HQ is COW arena on the meadow next to the Abbey itself.

The address is:

Calke Abbey



DE73 7LE


Our ethos for the event is aligned with our ethos for Peak Running as a whole. We want it to be an event that is capable of challenging even the most experienced runners and hikers, while also inspiring those within the wider community to challenge themselves in a friendly and supportive environment. We want there to be some tough competition at the front of the fields in each event. But we also recognise that, for the majority, simply finishing their chosen event is winning for them. So even if you're not a fast, or you'd prefer to just go for a stroll, it's designed to accommodate you. From a broader perspective, we want to make it an event that has a positive impact on the Calke Estate and broader National Forest area, its communities and the local environment. An event that residents, local businesses, and those that look after the landscapes, support and look foward to. Our commitments to this fundamental aim for the event include:

  • Building strong relationships with the land managers, their rangers and other stakeholders.
  • Organising conservation days for runners/walkers to help carry out important conservation and restoration work in the local countryside.
  • Using the event as a vehicle to help promote and educate people on the work and behaviours necessary to maintain the beauty of the area for future generations.
  • Using local independant buinesses for supplies, such as race mementos, t-shirts etc.
  • Ensuring there will be no trace of the event by the time it is wrapped up on the Sunday.


The full schedule of activities is currently being finalised and will be provided here shortly. The following information relates to the 3 main feature events only.

Friday 15th May 2020

17:00 Registration opens – Fractured Marathon

19:00 The Fractured Marathon starts

Midnight The Fractured Marathon finishes

Saturday 16th May 2020

06:30 Registration opens - The COW's Big Challenge

08:00 The COW's Big Challenge starts

18:00 The COW's Big Challenge finishes

See above for full schedule of start times for each distance.

Sunday 17th May 2020

07:30 Registration opens - The Calke Explorer

09:00 Earliest start time - The Calke Explorer

10:30 Latest start time - The Calke Explorer

12:30 The Calke Explorer finishes

Event Team

Our event team are renowned for their enthusiasm and ability to bring a sense of fun to an event, while maintaining the professional standards needed to ensure a smooth and safe event for all involved.

They’re nearly all runners/walkers themselves so they know what it’s all about and know what you need, maybe even before you do. If you are interested in joining the team please contact us.

Car Parking

Car parking is availabel within Calke Park close to the event arena.

On the Friday evening for the Fractured Marathon parking is chargeable at £3 per vehicle.

On the Saturday and Sunday parking is incluced with event entry along with entry to Calke park and gardens.

Parking is free at all times during the COW for National Trust members on production of their membership card.

Local Accommodation and Camping

Camping is available at the fantastic Whistlewood Common for participants in the Calke Outdoor Weekender events over the weekender on both the Friday and Saturday nights.

This is located outside but close to the Calke estate, and accessible via footpath for those that don't want to drive to/fro.

Tent pitches are just £15 for the weekend (2 nights) or £10 for one night. These are for one tent with up to 6 people sharing.

Campervan pitches are £20 (weekend) or £12 per night.

It's an off-grid facility so no mains electricity but the nature and uniqueness of the site will make it a great experience.

Sorry, no dogs are allowed on the site.

Pitches for tents or camper vans may be purchased here.


Taking Part

¿Qué debo hacer para transportar mi vehículo con ustedes?

Instrucciones para Iniciar el Trámite de Transporte Vehícular 1. Ponerse en contacto telefónico con su Agente de Ventas y expresar su decisión de transportar el vehículo con nosotros. 2. Solicitar a tu agente de ventas el voucher de pago y realizar el respectivo anticipo del 50% del servicio cotizado. 3. Enviar Soporte de Pago al correo electrónico y/o al Whatsapp de tu agente de ventas. 4. Llevar el Vehículo a la dirección del punto de cargue suministrada por nosotros ó esperar la grúa si solicitó el servicio Puerta a Puerta. 5. Diligenciar y firmar junto con la persona que le recibe el vehículo inventario de partes, golpes y rayones. 6. Hacer entrega de llaves y Tarjeta de propiedad del vehículo

¿En donde o en cual dirección me reciben mi Vehículo?

De acuerdo a la ciudad de origen, recibimos tu vehículo en las siguientes direcciones:

BOGOTA: Parqueadero centenario variante Fontibón av. centenario #96b-87 Int. 2

MEDELLIN: Parqueadero la alpujarra Cr 42 #24-96 la Estrella

CALI: Parqueadero Tunal 1km después de la glorieta del aeropuerto vía zona franca Palmaseca.

BARRANQUILLA: Parqueadero la otra Bendición de Dios Cl 30 #4-150

VALLEDUPAR: Parqueadero del Hotel los Bucaros salida de la Terminal de Transporte

SANTA MARTA: Parqueadero la Otra Bendición de Dios Romboy mamatoco.

CARTAGENA: Dirección suministrada por el cliente (Puerta a Puerta)

BUCARAMANGA: Parquedero en Girón de acuerdo a las indicaciones de la empresa.

¿Quien ó que personal recibe mi Vehículo?

Su Vehículo es recibido por personal de nuestra compañía, identificados con carnet e indumentaria propia de nuestra compañía, previa autorización por parte de su agente de ventas, quien le indicará de manera precisa la persona autorizada para recibir el vehículo y realizarle el inventario de golpes y rayones en presencia de quien entrega el vehículo.

¿Que documentación soporta el servicio de transporte y que soporte me queda luego de haberles entregado mi vehículo?

Una vez el vehículo es recibido por parte nuestra, usted recibirá en su correo electrónico registrado, el inventario de golpes y rayones junto con una orden de servicio, la cual contendrá toda la información correspondiente a su vehículo, a la niñera ó nodriza y su conductor encargado de transportar su vehículo y la información propia del servicio como fecha de salida y llegada, valor, responsable de entregar y recibir, etc. Todos nuestros documentos tienen nuestro logo y codigos de seguridad QR.

¿Cuanto tiempo tarda en llegar mi vehículo a la ciudad de destino una vez lo entregue?

Por lo general la duración del transporte es de dos a trés días hábiles si no hay novedades tales como cierres viales, restricciones viales, toques de queda, etc.

¿Mi vehículo viaja asegurado, es decir en caso de algún siniestro quien me responde por mi vehículo?

Los camiones Niñeras o Nodrizas adscritos a, cuentan con una póliza de seguro colectiva que en caso de siniestralidad cubre un porcentaje del valor comercial de su vehículo. Si su vehículo sufre un golpe, rayon o daño catalogado de menor cuantía, será resarcido por parte de la empresa prestadora del servicio de Transporte. "En con 35 años de operación, no ha ocurrido el primer siniestro que lamentar."

¿Qué es un servicio de transporte Puerta a Puerta?

Es aquel que incluye recoger su vehículo dentro de la ciudad de origen con una grúa plataforma para llevarlo al lugar de cargue donde será montado en la niñera o nodriza y posteriormente llevarlo en grúa plataforma a la dirección indicada en la ciudad de destino.

¿En cuanto me incrementa el costo el servicio puerta a puerta?

Todo depende de muchos factores: El tipo de vehículo, la distancia, el blindaje, etc. Por lo general la tarifa por trayecto es convenida con el agente de ventas una vez ingrese la información del vehículo y del servicio.

¿Si mi Vehículo está blindado cuesta mas el servicio de transporte?

Si, porque añade mas peso a la niñera y entre mas peso hay mas gasto de combustible y hay que equilibrar las cargas por temas de básculas en la carretera.

¿Por qué demora de dos a tres días hábiles?

Porque hay que hacer mas cargues y descargues de vehículos a lo largo del trayecto desde la ciudad de origen a la de destino.

¿Puedo obtener el teléfono del conductor de la niñera que transporta mi vehículo?

Si puedes obtenerlo pero no es recomendable que lo llames directamente a el por seguridad vial.


Route Details


Route details (where applicable) are shown within the details on the page for each specific event.


The distances for an event of this nature cannot be measured completely accurately due to the nature of the terrain and the obstacles that you will encounter.

We have measured them using a combination of mapping software and gps enabled devices and taken care to ensure that they are at least the advertised distance; as we know most participants would be disappointed to be short changed with the distance.

You can therefore expect a variation of up to around 5% above the advertised distances.

Frequency Asked Questions

Experience Required

Although there is no formal qualifying criteria for taking part in any of the activities at the COW, we recommend that if you familiarise yourself with the details for each event so you can judge whether you have the fitness and skills to take part.



The Fractured Marathon takes places on a well marked and marshalled course, so self navigation is not required.


For the COW's Big Challenge, the courses have been designed to make them relatively straight forward to follow, using well-trodden trails so far as possible. However, other than signs provided by the authorities to highlight rights of way, there will be no way-marking on the course. You are therefore responsible for your own route finding around the course.

Clear step by step route instructions will be made available to participants in each distance, together with gpx files that can be loaded into GPS enabled watches, smartphone apps or other devices. These will be provided well in advance of the race so you can familiarise yourself with them.

You will, however, be expected bring and carry a printed map of your route. This should ideally be an Ordnance Survey 1:25,000 scale map, or equivalent. 1:50,000 scale is the minimum standard.

Permissions for the event are based on participants using designated routes, which minimises the impact on the delicate landscapes in the area.

You must follow the designated route for your event throughout the event. Deliberate deviations from the route will result in disqualification and will also put the future editions of the event in jeopardy.


As an orienteering event, a key part of the challenge is to navigate yourself between the various checkpoints using a map that will be provided.

Kit Requirements


No specific requirements but we'd recommend off-road shoes if the ground is wet.


Mandatory requirements are specified for those participating in the longer distances (half marathon and above). See details on the event specific page here.


No specific requirements but we'd recommend off-road shoes if the ground is wet.


We have assessed the health and safety risks associated with the event and have put in place measures to manage these so far as reasonably practicable. However, the nature of long distance running or hiking on trails, means that participants have a higher level of responsibility for their own personal safety and that of others, than they would in a more controlled environment. In the most part this simply means applying common sense and good judgement. However, when fatigued, extra care must be taken to ensure you do not inadvertently put yourself in danger. Details of specific requirements relating to your safety and hazards to be mindful of will be provided in the event guide, which will issued to participants prior to the event.

Checkpoints and Aid Stations

All events will be based on the event area in Calke Park, which will serve as the sole aid station for the events.

The COW's Big Challenge and Calke Explorer will have checkpoints on the routes. Full details are currently being finalised.

Medical Support

Medical support will be available throughout the event. Their role will be to provide advice and deal with the more significant issues. Minor issues, such as general footcare, dealing with blisters etc., will be your own responsibility, utilising your own first aid kit.

Support Crews

You are allowed to have friends and family supporting you around the course. Except in the COW's Big Challenge, they are not permitted to provide you with any items (e.g. food/drink) during the event.

Support Runners (Pacers)

Participants are not permitted to have anyone who is not a fellow participant run/walk with them to act as a support runner.

In the FRACTURED MARATHON teams are only permitted to have one team member 'active' at any one time. Additional team members are not permitted to accompany their team mates around the course during the event.

Drop Bags

Solo runners in the Fractured Marathon and participants in the COW's Big Challenge may leave bags with spare kit, food etc. in the designated are in the event arena while they complete the course. Items are left at the owners risk though, as the areas may not be supervised at all times.

Prizes & Finishers Awards

Full details of prizes and finshers' awards are currently being finalised.

Permit & Rules

The feature events will operate in accordance with UK Athletics Rules under a permit issued by the Trail Running Association. Permit number [applied for]

Terms and Conditions

When purchasing an entry to a Peak Running Ltd event you are agreeing to the general terms and conditions specified below, as well as any terms and conditions specific to the event. Our general terms and conditions for our events, can be found at the link at the bottom of this page. These are supplemented with event specific terms and conditions. Fractured Marathon: Event specific terms and condtions for the Fractured Marathon can be found HERE COW's Big Challenge and Calke Explorer: Event specific terms and conditions are as follows: The refund available is 70% of the entry fee recevied by Peak Running. The deadline for cancelling your place and receiving a refund is 15th March 2020. The deadline for transferring your place to another participant is 13th May 2020. This must be done by the original entrant editing their entry on SiEntries.

In the COW's Big Challenge you are permitted to transfer your entry to a different distance at the same event, subject places being available and payment of any difference in entry fee. There will be no refund of the difference if moving to a shorter distance. The deadline for transferring to a longer distance is 13th May 2020. Transferring to a shorter distances are permitted until registration closes on the day of the event.



Results will appear here shortly after the event.



A selection of images from the event will be provided here once available. 

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