You have covered 10K before. This plan is about racing one. Ten weeks, 6 running days a week, and one quality session in the middle of each. That session is almost always threshold work, and there is a reason for it. Threshold is roughly the effort you could hold for an hour, and it is the single most valuable thing a 10K runner can train. You will run it as continuous tempo and as broken blocks with short recoveries, which lets you accumulate more time at the effort than a straight run would. ...