This 10-week plan was designed by the experts at Runner's World for those who have been running consistently for several years and who regularly log an average of 25 to 30 miles per week. It's geared for those who may have finished a half marathon and now want to finish faster. It features two or three days of rest and four or five days of running each week. It includes speedwork to boost your stamina and plenty of race-pace miles to help you easily get into rhythm on race day. There's a long run each week, which starts at eight miles in week one and peaks at 13 miles. Not the right plan for you? Check out Runner's World's training plans for beginners and advanced runners.