This 20 Week Race and a Half Challenge running plan is perfect for a training program that builds strength, speed, and endurance to help you conquer your back-to-back Half Marathon and Marathon challenge! Week 1 of this running plan begins with a 50-minute long run. Runners are advised to take on this plan after base building. Running Plan in Final Surge Includes: • 2 Strength training workouts per week with videos • 4 Running Days (with 1 day of speed play) • 1-2 cross-training days • ...