Cover art for All In Run Club Podcast - by Lee Grantham

Sub-3 Marathon: The 2 Numbers That Prove You're Ready

All In Run Club Podcast - by Lee Grantham

Published
June 24, 2026
Duration
9:44
Summary source
description
Last updated
Jun 24, 2026

Discusses health.

Summary

Are you ready to run a sub-3 marathon? Before you commit to a sub-3 training block, there are two numbers that tell you you're ready — not nearly ready, ready. The first: a solo 10K time trial in 40 minutes. The second: holding 4:00/km (6:26 per mile) for a full hour — a 15K in 60 minutes, or a 10-mile race in about 64. I break down the exact sessions to …

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Show notes

Are you ready to run a sub-3 marathon? Before you commit to a sub-3 training block, there are two numbers that tell you you're ready — not nearly ready, ready. The first: a solo 10K time trial in 40 minutes. The second: holding 4:00/km (6:26 per mile) for a full hour — a 15K in 60 minutes, or a 10-mile race in about 64. I break down the exact sessions to build both, why I coach to effort instead of pace, and how one runner went from 3:21 to a 2:56 first sub-3 in Chicago. These are indicators, no

Themes

  • health