Picture of the day: EnduranceLife ultra in South Devon

On Saturday, author and Guardian running-blog contributor Adharanand Finn took part in his first ultra marathon, the EnduranceLife CTS South Devon. It comprised 34 miles of hilly, muddy trails along one of the most beautiful stretches of the English coastline. Here he is, 15 miles into the race, which was won by Tom Payn in 4hrs 44 mins. Photograph by Marietta d’Erlanger