Fen 10

GreenThumb Fen 10 runners
The GreenThumb Fen 10 

25th October 2020 Cancelled 


It is with great sadness that we have to cancel the 2020 GreenThumb Fen10.  With the ongoing uncertainty surrounding COVID-19 and the additional restrictions put into place surrounding events on school property, we had no choice but to cancel this years race. 

Please see our Facebook page for details on how to enter our virtual event. 

The GreenThumb Fen10 is a flat PB potential 10 mile open road race.

With the weather on our side this England Athletics licenced race has plenty of PB potential. The route starts at Marshland High School and heads out onto flat Fenland roads. Supported by lots of enthusiastic marshals, make sure you don’t leave it too late to sign up for this sell out race.


How much is it?

£20 affiliated £22 unaffiliated 

What can I expect?
  • Bottles at two water stations
  • Chip Timing – supplied by Sublime racing
  • Changing rooms
  • Memento for all finishers
  • Lots of amazing cakes and refreshments
  • Fantastic marshals and lots of support
  • Includes Cambs County 10 mile and EMAC 10 mile
  • Wheelchair friendly

2020 Date: 25th October

Our refund and transfer policy

More than 4 weeks before race day

  1. Defer your entry to the following year
  2. Transfer your entry to another runner
  3. Request a refund

More than 10 days before race day

  1. Defer your entry to the following year
  2. Transfer your entry to another runner

Less than 10 days before race day

We are unable to defer, transfer or refund.

In the event we have to cancel the event due to extreme weather conditions we will be unable to offer a refund or defer your entry.

What others have said about our race

HI All

I just wanted to say a massive thanks again for hosting us again this year and making it an excellent event again. 

Best cakes in the area, Tea’s pretty good and one of the best races of the year, lovely and sunny, nice and flat but it was a bit windy though, if you could sort that for next year - that would be awesome.

Thanks again guys


I already expressed to the team that delivered the race last Sunday how much of a success it appeared to be, from registration, to the baggage ladies, to the marshals, and not forgetting the RD and Martin at Sublime.

It was a great event, this is from not only a runner's point of view but also as the RD for Stamford 30k I know how much effort and time goes into pulling these events off, so thank you from me again to you and all of your club.

Mark Alderson

How to enter

Our chip timing and race registrations are supplied and handled by Sublime Racing. 

Click here to enter: 


If you would like to join in the fun without the run, please sign up to volunteer. We have lots jobs including course set up, marshalling, water stations, parking and catering.

As a thank you, you will receive a free race memento and lots of free tea and coffee.


Sponsored by Greenthumb Lawn Treatment service

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