How to Avoid Hitting The Wall on Race Day Ever felt amazing at mile 10, then completely destroyed by mile 20? That’s hitting the wall. Here’s how to prevent 1. Pacing is everything. Start too fast = guaranteed bonk. 2. Fuel like it’s your job. Take in 30-60g carbs per hour during long races. 3. Train your gut. If you don’t practice race-day fueling, your stomach won’t cooperate. RunningThreads