This Half-Marathon training plan (8-12 weeks long) has all the best workouts I've used over the years to help runners get ready to run your best for 13.1 miles but is geared toward the endurance monster type of runner. You'll still improve your endurance with progressing long runs and boost your stamina and speed with my half-marathon specialty workouts but I've tweaked this plan to better suit the more endurance-oriented runner with a heavier mix of stamina and endurance runs and fewer of ...