Centurion Running

First and foremost we are an ultra distance trail event organiser based in the UK. Our objective is to put on the best supported, most professionally and safely organised, runner orientated ultra distance trail races - anywhere. We have taken the things we liked from races we have been fortunate enough to run ourselves and added them to the national trails we love. Our aim is to provide the maximum level of support we can for runners over race weekend on the resources we have available. To be transparent. To be sustainable and reduce waste and environmental impact as much as we physically can.

Centurion was founded by James Elson, currently the race director for all of the events. We don't have any permanent staff, instead we have an incredible group of people join us in order to safely and professionally manage everything through race week. On top of that we are lucky to have without doubt the most incredible group of volunteers making race day happen. 

Our races all contain the same basic elements. 50 or 100 miles non-stop and on foot. 14 - 16 fully stocked aid stations over 100 miles (7 over 50), friendly and hugely enthusiastic volunteers and staff and medical support on hand at all times, up and down the course, throughout the race.

We held our first event in August 2011 on the North Downs Way and after some wonderful feedback, we set about designing courses and events that gave runners the opportunity to run some of the most scenic and challenging trails in the UK in a fully supported race format where both racing and finishing are encouraged in equal measures. Out of those elements were borne the 4 x 100 milers comprising the Grand Slam, the 2 x 50 milers and the Piece of String Fun Run, on which James Adams another UK based ultrarunner has been involved in equal measure.

The coaching services we provide are suited to runners of all abilities. The store is steadily growing to include more of the products we trust in and use ourselves. Check back regularly as things are evolving all the time.

Most of all we pride ourselves on conveying the information runners need in order to adequately prepare for and eventually to race to the best of their ability and in the safest possible way. Please email us with any feedback or queries and we will always come back to you. 

We often receive questions asking for clarification of whether a runner is qualified to compete at one of our events. Here is a brief overview of what counts, and what doesn't.

Please note that these are the absolute minimum qualifications required in order to start. We advise gathering a great deal more experience than a single qualifier before attempting the 50 mile, but especially the 100 mile distance. 

100 mile Distance - What Counts for 2018?

All Results must be from between 1/1/2015 and the race date of the chosen event. 

  • Completion of a 50 mile single stage ultra within 15 hours and with a published set of results. (Note if you have finished a 50 mile event within the cut off of that event, but in a time over 15hrs, you may apply to the committee for exception). 
  • Completion of a single stage ultra longer than 50 miles in length.
  • Completion of a Double Iron Distance Triathlon (Run Stage is single stage and over 50 miles in length)
  • Completion of a multi-day race where one individual stage is longer than 50 miles and invividual stage results/ lengths are published. Example: Marathon Des Sables where the long day is greater than 50 miles in length. 
  • Completion of over 50 miles in a timed event up to 12hr (runners may not use splits or final distances achieved at 24hr, 48hr or 6 Day Races)
  • Completion of over 75 miles in a timed event up to 24hr (runners may not use splits or final distances achieved at 48hr or 6 Day Races)

100 mile Distance - What Doesn't count for 2018?

  • A race that is less than 50 miles in length. Please do not email us requesting to use a race less than 50 miles in length, as a qualifier. We have to draw a firm line.
  • Completion of a 50 mile event outside of 15hrs total time.
  • Running the qualifying distance in training only. GPS traces/ Links to Garmin Connect or Movescount do not count.
  • Running the distance as part of a military exercise where no results are published.
  • Running the qualifying distance in an official race, but not as a single stage effort: Example: Completing 50 miles over a two day event or over two separate runs on the same day.
  • Ironman 
  • Completing over 50 miles in an ultra distance event, but not completing the full event. Example: DNF at the SDW100 at mile 70.
  • Old results. Example: Standard must be achieved between 1/1/2015 and race date, and the entrant offers a result from 2014.

50 mile Distance - What Counts for 2018?

All Results must be from between 1/1/2015 and the race date of the chosen event. 

  • Completion of a marathon (or greater distance) single stage race within the time limits of that event and with a published set of results. 
  • Completion of an Iron Distance Triathlon (Run Stage is single stage and 26.2 miles in length)
  • Completion of a multi-day race where one individual stage is longer than 26.2 miles and invividual stage results/ lengths are published.  
  • Completion of over 26.2 miles in a timed event (includes up to 6hr but NOT more ie. 12hr, 24hr, 48hr or 6 Day+ Races)

50 mile Distance - What Doesn't count for 2018?

  • Running the qualifying distance in training only. GPS traces/ Links to Garmin Connect or Movescount do not count.
  • Running the distance as part of a military exercise where no results are published.
  • Running the qualifying distance in an official race, but not as a single stage effort.
  • Completing over 26.2 miles in an ultra distance event, but not completing the full event. Example: DNF at the SDW50 at mile 42.
  • Old results. Example: Standard must be achieved between 1/1/2015 and race date, and the entrant offers a result from 2014.

* One caveat here are races which are published to be a certain distance, but are renowned for being short. If a race is advertised as 50 miles by an organiser, it will be counted as a 50 mile race and will be accepted as a qualifier.