Race on giant treadmill in Chile next weekend

This is perhaps one of the strangest races ever. Next weekend, the Chilean firm Oxford Fitness are organising a race on a treadmill that can hold 10 runners at once. For the first hour, the treadmill will speed will be 10kph (9:39 minutes/mile). In the second hour, the speed will be gradually increased until only one runner is left. Four of these races will be held.

See the promo video below...