The Wall: Most runners experience “the wall,” a point of extreme fatigue where your body runs out of stored energy. A runner can train their body to use fat as fuel and practice mental techniques to push through the wall.
Pacing: A runner can adapt to a sustainable pace for the race that balances speed and endurance. Starting too fast can lead to burnout, but a slow start might leave you with too much energy at the end. The use of a pace calculators and practice your pacing during training runs can lead to better running economy.
Dealing with Discomfort: Long runs will cause discomfort for a runner. It would be beneficial to learn to distinguish between soreness and pain and working the “Push Through” in intervals.