My buddy steve ( I run with him every now and then but can't see him for long) represented Gb today at the IAU 50k world champs, only went and won it, not exactly sure of his time but I think it was about 2.50, for 31 miles! Animal. He has an amazing story too, this is him http://www.steveway.co.uk/?page_id=2
What a legend, been running about 5 years and was well overweight before that!