This Level 1: 20 Week Marathon Training program is perfect for new runners or runners looking for a training program that builds strength, speed, and endurance over a longer period of time. The training program begins with a 50-minute long run and builds to a 3-hour long run. Running Plan in Final Suge Includes: • 2 Strength training workouts per week with videos • 4 Running Days (with 1 day of speed play) • 2 cross-training days • Longest run: 3 hours • Auto-Messages with training & ...