
Training Essentials for Ultrarunning

Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond
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Also known as microcycles, these recurring seven-day workout schedules typically include three designated hard days, which are buffered on either side by at least one day of lighter training. Two of the three hard days feature moderate-intensity or high-intensity runs while the third is reserved for a longer run, which is done mostly or entirely at
... See moreMatt Fitzgerald • 80/20 Running
RULE #6: PRACTICE STEP CYCLES Step cycles take the hard-easy principle to a broader time scale. Also known as mesocycles, step cycles are multiweek training blocks in which the running workload is intentionally varied from week to week. In a step cycle, each week of training is slightly more challenging than the preceding, until the last week of th
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