other words, pit stops for your arms) occupy about a quarter of the time and distance. In open water, a mile will take at least 10 per cent more time to swim (because push-offs boost your speed) and there are no pit stops.Meeting these challenges demands
you lift your head is a sea of other triathletes powering away from you. "Swimming fast at the start of a triathlon can sabotage your form, so the challenge is to maintain your efficiency at high intensities," says Laughlin.Find your thresholdWarm up