Rim to Rim to Rim (known in ultra circles as R2R2R or R3) is borderline barbaric, even in benign conditions. The challenge has a childlike simplicity to it: I wonder how long it would take to run to ...

‘It’s a doozy alright,’ says the receptionist, fixing her eyes on the snowstorm battering the hotel window. ‘We’ve had guests calling all afternoon saying that they won’t be able to get here, as the ...