Go Sub 4 hrs This marathon plan is for seasoned runners looking to make a breakthrough. 4 hrs is 9:09 per mile (4:59 per km) There are a variety of paces to be aware of throughout the plan, so it's important that you have a good understanding of these paces. They are shown in mile pace. Easy run pace 10:00 - 11:00 Goal Marathon Pace 9:00 Half Marathon Pace / Threshold (will be very similar) 8:45 -8:55 10K Pace 8:20-8:30 5K Pace 8:05-8:15 3K Pace 7:50-8:00 1500 pace 7:15-7:25 The first half ...