Base: go long
The 10K rewards aerobic depth, so the base phase carries more easy mileage and a longer long run than a 5K plan. This is the foundation everything else sits on, and skipping it caps your race.
The 10K asks for more aerobic depth than the 5K, so a good plan leans even harder on base mileage and threshold fitness. The speed matters, but the engine matters more. Here is how a 10K build is structured and what each phase is for.
The 10K rewards aerobic depth, so the base phase carries more easy mileage and a longer long run than a 5K plan. This is the foundation everything else sits on, and skipping it caps your race.
The middle block stacks tempo runs and longer threshold intervals to lift the pace you can sustain. For the 10K this is the single most productive type of hard work.
The final weeks add 10K-pace runs to lock in race rhythm, then a taper to freshen up. The taper trims volume while keeping a little intensity so you stay sharp.
The 10K is decided when form starts to fray. Film a hard rep, the AI shows where your mechanics break down as you tire, so the aerobic work pays off all the way to the line.
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A 10K build leans hard on the base phase, then adds threshold and race-pace work before a taper.
Common questions athletes and coaches ask about this topic.
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