Here is the winner, as chosen by the Olympic rower Zac Purchase:
TEAM! running the London Marathon in memory of Emily
Alison and Iain founded Team Em & Me! (TEAM! - teamemandme.org) in memory of Alison's sister, Emily. Emily had Type 1 diabetes and sadly passed away from complications related to the condition at just 29 years old in April 2012.
TEAM! comprises of 15 of Emily's friends, family and colleagues competing in the 2013 London Marathon and to date, TEAM have raised over £34,000 for Diabetes UK in Emily's memory. This is their story...
And here are the four runners-up, as chosen by the Guardian's Life & style editor Kate Carter:
Nikoletta Nicolaou tells us why she is running for Team AICR
http://www.aicr.org.uk
Why I ran the London marathon
For the Brain Research Trust
Thanks to everyone who submitted videos and well done to all runners! You can download the GuardianWitness app here and find out about other assignments here.
