Training for a marathon and want to build momentum without jumping in too deep too soon? This 8-week Level 2 Base Building Plan is for runners who already have some consistency and are ready to step it up before marathon training begins with more time on their feet and a touch of speed. This plan helps you build a strong aerobic base, practice pacing, and gently layer in quality workouts—all without the pressure of peak training. It's structured, flexible, and designed to meet you where you ...