I wrote a couple of pieces about Yury Strofilov (won the London marathon in 55 -60 age group). I don’t know his exact proportion but he’s a big fan of doing many slow miles so I’d imagine he applies 90/10; he is specifically focused on prolonging his running, more so than the results

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A Russian immigrant in America, father of 4, Cambridge and Harvard Business School alum. I run and write every day

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Alexei Sorokin

Alexei Sorokin

A Russian immigrant in America, father of 4, Cambridge and Harvard Business School alum. I run and write every day

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