The creative capital of Oregon is teaming up with adidas City Runs to give UK athletes and fitness fanatics alike a taste of Portland’s great outdoors during the ‘1 city, 1 hour’ race. Portland, also known as the city amongst the trees, is bringing an immersive pop-up to the City Runs event village on Sunday 7 April to celebrate the return of Delta Air Lines’ daily nonstop flight from London Heathrow to Portland International. What is the 1 hour challenge?…