An attempt at a 3,100 mile relay of marathons is being hampered by a lack of runners from the Borders area.
The run, in aid of Brain Tumour UK, has plotted a route around the UK coast.
But organiser John Stanford fears disappointing runners and donors if the remaining stretches are not taken up.
The last Scottish leg of the relay, from Tyningham, Dunbar, to Burnmouth, is still free, as is the leg between Burnmouth and Bamburgh Castle.
And there is still the opportunity to run through some of the most beautiful countryside the relay visits, from Bamburgh to Guyzance, Morpeth.
Stanford urged local runners to sign up, saying: “We have had a great response from runners around the UK who have signed up to take part in this exciting world record attempt.
“But we have not had enough runners sign up for the north east sections so far.
“We need to recruit runners from your local area to make this a success. It only works if we complete the route around the coast of Britain.”
A minimum of two runners are required for each leg, but volunteers can run sections of the course as a team.
For furthern information on how to apply, visit www.relaygb.org.