SCOTTISH 100km champion Isobel Knox is the latest big name to sign up for the forthcoming Borders Three Peaks Ultra.
And the 33-year-old from Innerleithen will be given a “booost” as she attempts to complete the 38-mile course with the introduction of an oxygen tent.
Around 100 athletes are expected to take part in the ultra marathon, which starts and finishes in Jedburgh.
As well as using well-known scenic trails and river paths, the route takes in the three Eildon hills.
And organisers have arranged for an oxygen tent to be placed at the foot of the triple-peaked extinct volcanoes, to give runners a breath of fresh air.
Knox, who recently won the national title in Wales, said: “With hills like the Eildons in front of you, you take any help you can get.
“I’ve not tried booost during a race before, but it will be interesting to see if it makes much difference when going over the Eildons.”
The Borders Three Peaks Ultra is described as the region’s hardest race with more than 1,200m of climbing during its 38 miles.
But it will be the Eildons at the half-way point that prove the biggest obstacle for most.
Organisers tied up a sponsorship deal with canned oxygen firm booost last month to offer runners a helping hand.
The canned inhalers are described as a direct alternative to energy drinks.
Originally banned by the World Anti Doping Agency, canned oxygen was cleared for use two years ago.
Triathlete Mike Cliffe-Jones from booost said: “We are delighted to be involved with the Borders Three Peaks Ultra. Oxygen is an essential fuel for both the brain and the body’s muscles – and research shows that increasing the amount of oxygen circulating in the body can positively affect strength, concentration, endurance and recovery.
“We’re sure the Borders Three Peaks Ultra runners [who include TheSouthern’s own Kenny Paterson] will benefit from booost.”
The Borders Three Peaks Ultra is part of the Jedburgh Running Festival.
As well as the 38-miles ultra, the festival also hosts a half marathon, a 10k road race, and a wheelchair race.
Entries and further details are available at www.jedburghhalfmarathon.org.uk