The Long Run That Tells You If Sub-3 Is Realistic

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If you keep fading after 30K in the marathon, the problem usually is not just mileage. It is whether you can hold marathon effort when your legs are already tired. In this video, I break down the progressive long run that tells you exactly where you stand before race day.

This session is simple in structure, but brutally honest in what it reveals:
• first third very easy
• middle third steady, building effort
• final third at marathon effort on tired legs

That final 10K is the real test.

If you can step up and hold marathon effort there, you’re in a strong place. If you can’t, that doesn’t mean the block has failed — it means you’ve found the exact gap you need to fix before race day.

0:00 Why You Keep Fading After 30K
0:19 The Real Reason Marathon Pace Falls Apart
0:46 The One Session That Tells You the Truth
0:58 The 30K / 18-Mile Progressive Long Run
1:07 Why the Start Must Feel Easy
1:22 The 3-Part Structure of the Session
1:43 Why the Final 10K Is the Real Test
2:02 Marathon Effort on Tired Legs Explained
2:35 What This Run Is Really Building
2:51 The Brutally Simple Test
3:08 What It Means If You Can Hold Pace
3:36 What It Means If You Can’t
3:47 Why This Is Still Great Data
3:51 Why Runners Fade in the Final Third
4:10 Why This Is So Fixable
4:16 Why 30K Is Enough
4:45 Prepared, Not Guessing

📺 WATCH NEXT
Why 90% of Runners Get Sub 3 Marathon Training Wrong: https://youtu.be/jNrXRE3upF0
The 4-Month Marathon Transformation: 3:35 to 2:53: https://youtu.be/ym-flI6uqxE
How I Went From a 25 Minute 5K to 16:40: https://youtu.be/Bl79Y37ua5Y

Lee Grantham explains how to use the 30K progressive long run as a marathon readiness test, why the final 10K matters most, how to judge marathon effort on tired legs, and how to build the durability that stops marathon fade late in the race.

#MarathonTraining #Sub3Marathon #LongRun #MarathonPacing #RunningTips #ProgressiveLongRun #MarathonDurability #RunFaster

Видео The Long Run That Tells You If Sub-3 Is Realistic канала Lee Grantham