Quick Tip: Athletes who compete in longer events often experience fatigue or a “lull” in the latter part of the race.  This can cost you to miss the crucial break, or your chance to podium. For races that last six hours or more, First Endurance recommends one serving of PreRace before the event and another half-serving two-thirds through the race to help you stay focused and energized.  PreRace can be mixed into EFS or any drink, so it’s easy to make sure you’re getting PreRace when you need it.   Dosing appropriately takes practice and tolerance and should be tested during training.