18:57 parkrun to 71:11 HM in 12 months; from newbie to sub 2:25 marathon in 18 months
The Stablemaster Speaks - The Art of the Marathon
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Rapid half-marathon improvements
John recounts James's progression from 1:26 to 1:11.17 half over about a year using the super base.
Play episode from 15:12
Transcript
