Build endurance, improve consistency, and train with more structure using this 20-week Intermediate Marathon Training Plan designed for runners ready to move beyond simply finishing. This plan is built for runners who have completed at least one half marathon or marathon and are consistently running 4–5 days per week. Training is guided by effort (RPE) rather than pace, helping you train based on how your body feels while balancing real-life schedules and recovery. WHO THIS PLAN IS FOR • ...