An endurance runner who has multiple sclerosis has become the quickest woman to run Britain's entire coastline after conquering 200 marathons in 204 days. Megan Boxall, from Thorpeness, Suffolk, started the challenge on Sizewell beach on 18 October before embarking on the 5,240-mile (8,433km) run around England, Scotland and Wales. During her trip, the 33-year-old financial journalist, who was born in Hertfordshire, has run through everywhere from Clacton and Blackpool to Dundee and Newcastle.