Last year, an athlete named Chris came to me training about ten hours a week. He wasn't skipping workouts. He was consistent. He was doing everything his plan asked of him. But every Sunday, on his long run, he'd completely fall apart. Pace would slow. Legs would go heavy. Energy would levels would drop.

I looked at his training and saw something different. Fitness wasn't the problem. Fueling was. We didn't add more hours. We simply changed how he fueled his training and recovery using the same system I'm about to hand you.

Within a few weeks, his long runs felt great. He stopped fading late in workouts, recovered faster between sessions, and trained with confidence instead of constantly wondering if he was doing enough. He went on to qualify for Boston and finish his first 70.3.