Penny Elliott July 4, 2013 Run247 Penny takes on toughest endurance race in the world- O till O Penny Elliott July 4, 2013 Run247 To date Penny Comins has completed 14 Ironman’s, over 30 marathons and an ultra. Now she prepares for one of the top 10 toughest endurance races in the world - O till OWebsite: Run247Feature link