Running at a pace of 8 min/mile is your ticket to breaking 25 ... What pace must I run to go sub-2 hours for the half marathon? To break two hours for the half marathon – which is 13.1 miles ...

The midweek workouts boost your maximum speed, which makes walking at marathon pace feel that much easier, while the weekend efforts are enough to build endurance. Easy 45-Minute Workouts.