The Best Marathon Workout You're Probably Not Doing

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The progression run is the single best workout you can do in a marathon block. And almost every runner makes the same mistake when they do it.

In this video I'm breaking down exactly how to do a progression run, why it works across the three intensity domains from your first lactate threshold all the way up to your second, and how to set your own paces whether you are a beginner or chasing a marathon PB. I also did one myself at 7,000ft of altitude in Flagstaff and I'm sharing every mile and the five point checklist I use to decide whether a progression run session actually went well.

Whether you're training for a 10K, a half marathon, or a marathon, there is a version of this session for you ✌🏻

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What's in this video ⬇️
0:00 – The Best Workout in a Marathon Block
0:50 – The Three Types of Progression Run
2:31 – The Science: LT1, LT2 and the Three Intensity Domains
4:37 – Why the Progression Run Works So Well
7:15 – Today's Session: 10 to 11 Miles at Altitude in Flagstaff
8:52 – The Full Session Breakdown: Every Split
13:52 – Did I Nail It? The Five Point Checklist
15:32 – How to Set Your Own Paces

#progressionrun #marathontraining #philybowden #newyorkmarathon #workouts #flagstaff #marathon #runningscience #halfmarathontraining
Posted by GG in Default Category on September 21 2026 at 11:30 AM  ·  Public

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