The Greatest 4-Week Marathon Training Plan In History

Day 1 - 1 mile run Day 2 - 2 mile run Day 3 - 3 mile run Day 4 - 4 mile run Day 5 - 5 mile run Day 6 - 6 mile run Day 7 - 7 mile run Day 8 - 8 mile run Day 9 - 9 mile run Day 10 - 10 mile run Day 11 - 11 mile run Day 12 - 12 mile run Day 13 - 13 mile...