If you don’t swim in a straight line, you can easily add 10-20% to the distance you swim. In an Ironman distance swim, that’s adds up to 400 meters.
It doesn’t matter how fast you are, if you swim further than you need to you will finish with a slower time. Swimming a straight line is the easiest way to improve your swim time on race day.
Increasing the frequency of your sighting strokes is the easiest way to make sure you stay on course. Most triathletes don’t sight enough.
I discuss Three common sightings mistakes on the Endurance Hour YouTube Channel . Plus How to survive a mass swim start and how breathing in the pool varies from open water