Why Long Runs Fall Apart After Mile 8 (And How to Fix It)

Your long run feels great through mile 5 or 6. Then somewhere around mile 8, everything starts falling apart.

Your legs get heavy. Your pace slips. The remaining miles suddenly feel enormous. And if you're training for your first half marathon, you may start wondering how you're ever going to make it to 13.1.

Here's the important part: there's nothing magical about mile 8. The problem often started much earlier in the run.

In this episode, Coach Chris and Coach Maya break down why long runs can unravel late—and what beginner runners can do to prevent it.

You'll learn:

• Why starting just a little too fast can come back to haunt you miles later
• Why “banking time” early in a run often backfires
• Why fueling before you feel depleted matters
• Why fueling by time can make more sense than waiting for a specific mile
• How heat and humidity can make your normal pace unsustainable
• Why your endurance may simply still be developing
• How to handle the mental battle when the final miles start feeling much harder
• What to do differently on your very next long run

Our biggest takeaway?

Mile 8 usually isn't the problem. What happened before mile 8 is the problem.

And you don't solve mile 8 at mile 8. You train for it.

📖 Read the complete companion guide:
Why Long Runs Fall Apart After Mile 8 (And How to Fix It)

🏃 Want a structured path to 13.1?
Instead of piecing together random workouts and running advice, start with our beginner-friendly Half Marathon Training Plan system:
HalfMarathonTrainingPlan.com/start

If this episode helps you with your long runs, follow the Half Marathon Training Plan Podcast so you don't miss the next one.

Train Smart. Run Strong. Finish Proud.