OC Chris Helberg will be running seven marathons in seven days. As if that weren't challenging enough, he will be tackling them all in Dorset, a county renowned for its tough terrain and steep hills! 

Chris is raising money for the Dorset Cancer Care Foundation, a charity founded by his mum following her own battle with cancer. Inspired by her experience, she wanted to support other families facing financial hardship due to the disease. 

The first marathon will take place on 10th March, with the final one on 16th March. If you'd like to support a fellow OC and this incredible cause, simply scan the QR codes below.