Fitness
Half Marathon Build
A half marathon build combines aerobic base, a long run, and quality sessions over twelve to sixteen weeks. Easy-day discipline and fueling practice support race-day pacing.
A half marathon build structures twelve to sixteen weeks of aerobic base, a weekly long run, and one or two quality sessions—threshold, intervals, or race-pace blocks—for 13. 1 miles.
Protect easy days and progressive fueling on long efforts.
Common questions
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How many days per week for a half marathon build?
Four to five run days work for many adults—one long run, one threshold or interval day, easy volume, and rest or cross-training. Increase weekly mileage gradually.
Related terms
Put Half Marathon Build into practice
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