Have you heard the quote "a goal without a plan is just a wish"? After all your hard work training for an event, why would you want to just wish that it will go well?! That's why, any time you're taking on a race, it's good to develop the habit of creating a Race Plan. The race plan helps you to think through importance aspects of your race, when to arrive, gear, fueling, pacing etc, so that on race day you can just execute your plan. Some of the ways a race plan will help you to:
Think through the gear that you're going to need based on the race, and expected weather conditions. Preplanning what to pack can help you to avoid forgetting something, as well as alert you if you need to buy anything before the race.
Estimate your pacing based on your training, so that your goal is realistic and you're not just winging it. You can give your estimates to your family and friends that are supporting you, so they have a better idea of when/where they can spot you on the course.
Plan your fueling based on your training, so that you ensure that you have enough fuel with you and you know the timing of when you're going to eat/drink it. Waiting until you're hungry or thirsty to eat, rather than having a schedule of when to eat/drink, can leave you hitting the wall later in the race.
You can build on or tweak previous race plans to learn from what worked and what didn't work; helping you to improve as an athlete.
Before you hit the start of your next race, have a plan! See the race plan sheet here.