The sport's rules require that a race walker's knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times.

They rightly see it as a race between them getting their derivative exposure straight, and owing billions on defaulting companies to which they are overexposed because of ill-hedged swaps.

Two four-man crews of similar strength and ability race each other under the same conditions over a straight 1, 500-meter course.