100 & 50 MILE TRAIL ULTRAMARATHONS.

Fully marked and supported races across the most scenic trails in the United Kingdom.

Winter 100 2014

  • 18 Oct 2014
  • 3840ft
  • 100mi
  • £125

100 mile trail run taking in the Ridgeway and Thames Path National trails. Race comprised of 4 x 25 mile out and back spurs. Total Climb: 3,840ft. Date: 18th October 2014.

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Piece of String

  • 1 Nov 2014
  • Someft
  • ?mi
  • £30

The worlds most pointless race. A race that could be anything between 1 mile and 3000 miles. You won't know until you finish.

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Thames Path 100 2015

  • 2 May 2015
  • 900ft
  • 100mi
  • £130

100 miles non-stop on foot along the River Thames from Richmond, London to Oxford. 28 hour time limit. Total Climb: 900 feet. Date: 2nd May 2015.

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Ultra/Marathon Coaching

Our online coaching team of three, Ian Sharman, James Elson & Robbie Britton have been designing simple, highly bespoke training programs built around individual athletes, for over 2 years. Between us we have the experience of 100's of marathons and ultras across all different types of terrain and environments and we put all of that experience into coaching you to reach your highest potential. Whether you are looking to finish your first ultra or multi-day race, compete at a top level at any ultra distance or simply stay focused and injury free up to your goal event, we can get you there. You can read more about some of the races we have been involved in & our experiences/ coaching qualifications further down the page.

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Latest Race Report

NDW100 2014 Race Report

2 weeks, 2 days ago (Saturday 16:05, Aug 16, 2014)

Back in 2011 this was our first event, held alongside marathon and 50 mile options, on an out and back course to Knockholt Pound and return. Little has changed in the interim with the exception of the course extending now as a point to point all the way to Wye in Kent, rather than returning to Farnham. And the fact that we had 37 finishers in that first race. 3 of them started again this weekend. We also welcomed back 114 returning…

Continue reading... Photos results


The Centurion Ultra-Marathon Store

A flexible flask with bite valve for any energy drink or gel, allows you to squeeze the entire content out of the flask....

£ 17.99 - go to store

Petzl's ultimate running headlamp. Released in July 2014, the Nao 2 is the updated edition of the ground breaking Nao: Intelligent Lighting. Incr...

£ 144.98 - go to store

Drymax Hot Weather Running socks keep feet dry and prevent hot spots and blisters in the heat, through the patented Blister Guard system, made o...

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Super powerful and lightweight headtorch, combining the most advanced reactive lighting technology on the market and the lightweight frame of the...

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The Centurion ultra blog

Robbie Britton's top tips for the NDW100

1 month ago (Wednesday 20:21, Jul 30, 2014) by JamesElson

Team CR and Inov8 athlete Robbie Britton shares his top 5 tips for the NDW100. Rob won the inaugural event in 2011.  1. Walk those hills - Most of the hills on the NDW100, especially in the first half, are shorter, steeper hills that are best walked so don't even try to run them. Use them as a chance to get some food out, get water on board and enjoy some guilt free walking. 2. Eat Drink and Be Merry. The Centurion Events have checkpoints…

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Robbie Britton's top tips for the NDW100
Team CR and Inov8 athlete Robbie Britton shares his top 5 tips for the NDW100. Rob…
1 month ago

La Sportiva Shoe Review: Helios & Bushido
Running and racing year round in the UK, the 'right' trail shoe for me has always…
2 months ago

The Bob Graham Round....1
This is a very long post. The principle reason for that, is that I'm trying to clear…
2 months ago

@Marvellousmimi great feature on meridian news!!!!! Wow!!!!
3 hours, 3 minutes ago

@Norsemouse makes it to the finish of the #utmb with 12 mins to spare. 45:48 of running. Heroic! http://t.co/9RQPdkSpcC
1 day, 7 hours ago

RT @iRunFar: Robbie Britton drops a 6:26 final mile at #UTMB. #TweetForHisMum http://t.co/XiKlaHMAen
1 day, 23 hours ago

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