Before the Race
1. Learn the Course Map
Very rarely is a course going to change the day of a race. The race director has set up how they want their swim well before the morning of the race. Typically you're going to get an e-mail with an "athlete's guide". If you don't it can also be found on the race website. In it should be the map to your swim and your distance. Look at it! It seems simple enough, because it is, but it can be a crucial component. If you're doing a sprint distance triathlon and there is also a longer race going on the same day, do you know where your buoys are compared to the longer race? The course maps will help guide the way here. When you know exactly where your buoys should be, this will alleviate some of your race morning nerves. And most good race directors will explain the swim course with everyone gathered at the start the morning of the race. This will almost always confirm what you've already known. In turn giving you a little bump in confidence that you know where you're going.2. Practice in Open Water
Not everyone has access to open water practice, but if you do then take advantage of it. When you've had practice swimming in water where you can't see the black line at the bottom of the pool, you'll begin to notice the little things that are different. Like how much of a straight line you actually swim in when you can't see that convenient black line.
Race Morning
3. Cold Water Tip - Double Cap
If your race is going to be wetsuit legal and a cold swim (think 68 degrees Fahrenheit and below) then wearing 2 swim caps can be crucial in saving extra body heat. You can use any swim cap for the bottom, but a silicone swim cap is going to be the thickest and warmest. By wearing two caps, you'll save body heat lost through your head into the water by insulating yourself. Although it won't ward off all the cold on your face, it should make for a more comfortable swim than if you only have one on. 3.5 Wear Goggles Underneath Your Outer Cap With your double cap setup you have the opportunity to put your goggles on over your first swim cap, but under your race-day swim cap. This helps keep the straps secure in position on your head. Also, it keeps them safe from stray hands in the water that could accidentally pull them out position or off your face. Nobody wants to be putting goggles back on their head in the middle of an open water swim, trust me, it's no fun.4. Warm-up
Just like when you go to the pool, a warm-up is going to be crucial to your performance on race day. If you have a coach, then talk to them about how long they want you to warm up for. Most likely this is going to mimic what you do on a normal day at the pool. For beginners it may