Sponsor Matt Collett in his challenge.
On the 2nd of October 2016 Matt is competing in the Cardiff half marathon in support of Dog A.I.D.
Let's get behind him in his challenge.
"Cardiff Half Marathon is a distance of 13 miles starting at Cardiff Castle around the whole city, where my personal goal is to get back to previous levels in running half marathons many years ago towards breaking 1 hour 35 minutes .
The support from all my training pals in Hermitage Joggers & Newbury Runners is even more important over the next month."