Centurion Running

Chiltern Wonderland 50®

20 Sep 2025

Launches19 Oct 2024 10:00

Course Records

Jon Ellis (M)

6:22:25

2020

Laura Swanton-Rouvelin (F)

7:37:29

2020

All rules are at the final discretion of the race management team. No challenges will be permitted.

Runners must carry the following mandatory equipment at all times. 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)
  • Water Bottles/Bladder capable of carrying a minimum of 1 litre.
  • Survival Blanket: 1.4m x 2m minimum
  • Waterproof Jacket: Gore-tex or similar, minimum 10000mm+ & must have sealed seams. 
  • Whistle
  • Headtorch or Primary Light Source (Minimum 100 lumens)
  • Back Up Light Source / Headlamp (Minimum 50 lumens)
  • Long sleeved base layer or fleece top - This must be carried separately from the start and kept dry, for use only in an emergency. Starting in 2 layers is not a substitute.
  • Cup
#RuleRunner ActionPenalty
1 There will be no unofficial runners. Unofficial Runners/ Running without a registration or Running under another name Lifetime Ban at RD Discretion
2 Each runners bib number must be worn on the front of the body and must be easily visible at all times. Bib number not visible on front One Hour Penalty
3 Runners must follow the marked trail/ course at all times. Any runner caught deliberately cutting the course will be banned from taking part in future Centurion events. Short-cutting the route knowingly At the RD's Discretion
4 Each runner must complete the entire course under his or her own power. Receiving powered assistance ie. vehicular, bike, horse, or short rope from pacer DQ
5 Runners may not store supplies of any kind along the trail. Storing Supplies along the trail Two Hour Penalty
6 Each runner must be checked IN to or visit all aid stations.  Check In at All Aid Stations Time Penalty at RD Discretion
7 Cut-off times will be strictly enforced. There are cut offs at EVERY aid station. Runners leaving any aid station after the cut off will not be listed as official finishers and will not be eligible for awards. Continuing/ leaving aid station after cut off DQ
8 Injection of PEDs or Fluids/ IVs by non-official race medical personnel Injection of PEDs or Fluids/ IVs by non-official race medical personnel DQ and Lifetime Ban
9 Littering of any kind will result in immediate disqualification. Runners caught littering will be banned from all future Centurion events. Please respect the natural beauty of our trails and the right of everyone to enjoy them. Littering will threaten our use of the trails and the future of the race. Littering by competitor or crew DQ
10 Any runner who is unable to finish the race must personally inform the aid station captain of the nearest checkpoint of their decision to withdraw. HE OR SHE MUST HAND IN THEIR RACE NUMBER TO THE AID STATION CAPTAIN AT THAT TIME. This serves as official notice of a runner’s withdrawal from the race. Runners who leave the course without turning in their number will be classified as “lost,” initiating serach and rescue, for which the runner will be charged. Not informing organisers of withdrawal from event DQ and ban at race directors discretion
11 Minimum age on race day is 20 Providing false information relating to age on registration form Lifetime Ban
12 Pacers are not permitted at any time Pacers accompanying runners DQ
13 Runners must carry with them AT ALL TIMES the mandatory equipment required. Missing Item of Mandatory Kit Minimum of 1 hour penalty per missing item
14 There will be mandatory gear checks at the start, on route, or at the finish. Failure to comply with the gear checks will result in disqualification. Refusal to have obligatory equipment checked DQ & Lifetime Ban at RD Discretion
15 Runners are not to be accompanied by dogs at any time whilst on course. Accompanied by dog DQ
16 We reserve the right to conduct pre and post-competition testing for any and all performance-enhancing drugs (PEDs) listed on the current WADA Prohibited List. Any athlete who refuses to submit to anti-doping controls, if selected for testing, shall be disqualified and subject to a lifetime ban from our events. Refusal to comply with testing if selected. DQ and Lifetime Ban
17 Runners must not be crewed in any way at this event Being crewed in any way DQ
18 Runners must at all times comply with any instruction given by race management, staff and volunteers. Refusal to comply with an order from the race directors, race staff, doctors or rescue personnel. DQ & Lifetime Ban at RD Discretion

RULE VIOLATION PROCEDURE 

Any protests to a ruling or of a runner to runner violation must be submitted by a registered entrant and must be lodged using the following procedure: 

1. Report the alleged violation to the runner, his/her crew or pacer as the incident occurs. Enlist a fellow witness to the alleged violation if possible. 

2. Report the alleged violation with the runner’s name and number to the next available aid station staff. 

3. Report the alleged violation in writing at the finish line to the race director. All protests must be submitted by 6pm on Monday following the race. Written protest must include the name of the person who lodged the complaint. 

4. Decision on all violations and rules is at the final discretion of the Race Management ONLY. There will be no challenges after that decision.

The footpaths, bridleways and roads on the course are used by, but not limited to, horse riders, walkers and mountain bikers. Please be aware of other people whilst you are running and be as polite and courteous as possible to them, making way when necessary, particularly to horses. You do not have priority over any other users out on the course, most will be totally unaware of the event taking place.