Centurion Running

Wendover Woods 100®

9 Jul 2021

Course Records

Stuart Leaney (M)



Anna Troup (F)



The Wendover Woods 100 is a 100 mile foot race consisting of 10 x 10 mile loops on forest trails, entirely within Wendover Woods. The course mixes some of the most enjoyable trail running to be found anywhere, with wide, soft trails including smooth descents and runnable climbs. These sections are contrasted with some much steeper ascents and descents scattered throughout the loop. The course is identical to the 50 mile, but 10 loops instead of 5. The race does not form part of the Grand Slam. Will you go for the rarest buckle of all? The 100 Miles - One Day WW100 buckle has only ever been handed out 3 times...

As with all Centurion events, runners will be fully supported by 19 well stocked aid stations, full medical support and a marked course. Race held under full UK Athletics Permit granted through the TRA (Permit Number 3960).


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9 Jul 2021 08:00

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99% trail, 1% road

General Info

Date and Time

The 2021 Wendover Woods 100 will start at 0800 on Friday 9th July 2021. A cut off of 32 hours will be in place, with 1600 Saturday 10th July the final time for runners to complete the course. There are further cut offs at every aid station on route.


Entries for 2021 will open at 1000 on Saturday 12th December 2020. There will be 100 places for the event on open registration. Places are on a first come, first served basis. Entrants must meet the minimum qualification standard below in order to apply. There will be no waitlist. 

Entry fee is £185.

Qualification Standard

In order to start the race, you must have completed a minimum of a 50 mile distance race within 15hrs, between 1st January 2017 and the 2020 race date. As organisers, we reserve the right to refuse anybody entry who does not meet this standard. Unqualified runners may enter but should they not complete a qualifer within the requisite time frame, they will not be permitted to start. There are further conditions to what may be used as a qualifier. 

Click here to read more about what counts as a qualifier. 

Cut Offs

Runners must finish the course within a 32 hour time limit. There are additional cut offs on route which can be found in the aid station table

Start/ Finish Location

Registration, Start & Finish are in 'Trig Point Field', Aston Hill, Halton, Aylesbury, HP22 5NQ. The field is opposite Aston Hill Bike Park. 


The race route consists of 10 x 10 mile loops on forest trails and tracks within Wendover Woods, woodland operated by the Forestry Commission. 

A map of the route and a downloadable GPX file can be found at the bottom of this page. The route has 20,000 feet of climb, and 20,000 feet of descent.


Buckle to Finishers only. Finishers under 24 hours will receive 100 MILES - ONE DAY buckles, of which only 3 were handed out at the inaugural edition of this event!

Additional prizes will be awarded to 1st, 2nd and 3rd place Male and Female as well as winners of each Vet Category: MV40, MV50, MV60, MV70. FV40, FV50, FV60, FV70. 

Aid Stations

The start/ finish location also acts as the aid station at the start/ end of each loop. Runners will make 9 visits there before finishing at the end of their 10th loop. The Hale Lane Aid Station falls at mile 5.5 of each lap and will therefore also be visited 10 times. A full list of the distances at which the aid stations fall and the respective cut off times, can be found here. Both aid stations will carry as a minimum: Tailwind, water, coke, chocolate, sweets, sandwiches, nuts, lots of fruit, Gu gels, wraps, sandwiches and other sweet and savory snacks. Hot drinks will also be available from lap 3 onwards at both aid stations. 

Drop Bags/ Finish Line Bags

A drop bag may be deposited at registration. These will be stored in number order and accessible to runners at the end of each 10 mile loop. Bags should be clearly labelled with runners name and bib number.

Course Markings

The course will be marked with our new pink ribbons, Centurion marker arrows and Orange Chalk Ground Paint. There are a handful of road crossings/ to negotiate. These will NOT all be marshalled. 


Trackers and bib numbers will be handed out at registration and collected back in at the race finish. The tracking system is provided by Open Tracking and uses OS Mapping software so the overall interface is superb. Runners will wear the tracker throughout the event, fixed to their pack or race vest. Throughout the race, runners live position data will be visible on the live tracking system, together with updated splits for each check point and of course the finish.


No pacers are permitted at any point on the route. 


No crews are permitted at any point on the route.


There will be a dedicated team of race medics available throughout the race including a static first aid team at the start/ finish check point and a roving team within the Woods. If you suffer an injury or accident that warrants direct medical attention, the medics will be on hand to provide you with exactly that. Contact numbers and full details of what to do in an emergency will be given to you in the pre race information packs and again at race registration. Due to the nature of the course ie. some remote and far from roads, the medics may take some time to reach you, or potentially be out of contact tending to other runners. In those instances you should contact the emergency services on 999 AS WELL AS the race medics. Full instructions on what to do in an emergency can be found in the infopacks


99% of the course is on trail, therefore trail shoes are advised. There are sections of trail which can become very muddy in wet conditions. The course takes a number of steep ascents and descents, many of which will become hard going in wet conditions, particularly as the race progresses. These sections must be negotiated carefully in both the dry and the wet. Runners must carry the following mandatory equipment at all times. 

There will be kit checks prior, during and after the race. Runners must carry the following mandatory equipment at all times. A time penalty of one hour will be imposed for any item found to be missing at any point on course. Please refer to this page for explanations on the inclusion of the below items. 

There are many options regards kit for fulfilling these requirements and those of other events. We stock what we believe to be the best options at our online store available by clicking here under the Mandatory Gear Section. Please ask us if you have any questions.

  • Fully Charged Mobile Phone including the numbers for the Race Medic and Race Director (on the number you have given at registration)
  • Survival Blanket: 1.4m x 2m minimum
  • Whistle
  • Waterproof Jacket: Gore-tex or similar, minimum 10000mm+ & must have sealed seams.
  • The race is cupless which means you must bring a cup with you. Soft cups are available at the store here
  • Any runner starting any loop after 1800 or before 0500 must take a primary light source/ head lamp out with them on the course - Minimum 75 Lumens
  • Any runner starting any loop after 1800 or before 0500 must take a Back Up Light source out with them on the course - Minimum 25 Lumens

Course Map

Download KML fileDownload GPX fileNote: you may need to right click and Save As to download these files