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TREELINE BLOG
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The 2025 Treeline Endurance Book List
One of the things that drove me to coaching years ago was how the learning process has no end. New ideas, perspectives, and data are always emerging. Along that grain, I know it's been a good year when I feel like I see the world in a slightly different light than when the year started.
I found that these titles added perspective. Perhaps next year one or two of them can widen yours as well. Here's our 2025 book list.
Dec 30, 2025


Post-Race Reflections From Our Athletes at the 2025 JFK 50 Mile
Race-Day perspectives from Shae Rhinehart, Robbe Reddinger, and Coach Greg illuminate the experience of JFK 50 for future runners
Dec 17, 2025


Guest Post: Cutler Andrews Rises From the Ashes at the Cruel Jewel 100 Mile Ultramarathon
There are moments in life when you’re not sure how you’re going to take the next step. You feel broken—not metaphorically, but physically, emotionally, and spiritually—like your body has been through a meat grinder, and your soul is somewhere on the trail, questioning your life choices.
May 28, 2025


The #1 Skill Required to Succeed in Anything
The skill required for the development of all other skills and achievements.
Jul 30, 2024


"The Case For Training Less"
Read the the story by Head Coach Greg Marshall just published in Outside Magazine.
Jul 9, 2024


Abstaining From Alcohol: Reflections From My Year Without Beer
I share my experience over this past year for anybody that has wondered about the influence of alcohol in their own life.
Jun 22, 2024


Cocodona 250 Sold Out in 2 Weeks. What Does it Mean for the Future of 200+ Mile Races?
Why everyone suddenly wants to run 250 miles, and the future of 200+ mile ultra running
May 22, 2024


2023 Backcountry Rise 50 Mile: Race Report
An overview of Coach Greg's experience at the 2023 Backcountry Rise 50 Mile at Mount St. Helens National Monument
May 17, 2024


It's Not About Finish Lines
What it is about is this: Living with purpose. Setting goals. Achieving success. Creating structure. Developing discipline. Knowing what you
Mar 29, 2024


What Does Skating 10K Have to do with Running?
What's fascinating about the 62-page manifesto by World Record Speed Skater, Nils van der Poel
Mar 27, 2024


The Secret to Under-Performing in Your Chosen Sport
How to over-specialize and limit your athletic potential.
Mar 7, 2024


Race Report: LS26.2 - The Lake Sonoma Trail Marathon
In this post, we cover what athletes considering the Lake Sonoma races can expect, and we take an in-depth look at how to train for it.
Feb 12, 2024


The Rut Mountain Runs VS. Speedgoat Mountain Races
Analyzing and crowning the most challenging 50K ultramarathons in the USA.
Jan 1, 2024


Treeline Beginner's Guide: Choosing Your First 50K Ultramarathon
The 10 aspects to choosing your first ultra every runner should consider
Jan 6, 2023




Race Report: The Rut Mountain Runs 50K
My experience finishing the 2022 Rut Mountain Runs in Big Sky, MT.
Sep 29, 2022


Hiking the John Muir Trail in 14 Days
A comprehensive breakdown of the good, the bad, and the unexpected on my 14 day JMT thru-hike. "Day 12: Lots of chatter about how not to...
Jun 12, 2022


Deep Dive: 14 Day John Muir Trail Gear List
A deep dive into what items I took on my 14 day JMT thru-hike, and why those items made the list over all other options. Choosing...
Jun 12, 2022


Meal Planning for a 14 Day John Muir Trail Thru Hike
Everything you should know about fueling yourself to support your hiking goals Meal planning is a crucial aspect of any backpacking trip....
Jun 12, 2022


The Itinerary and Logistics of a 14 Day John Muir Trail Thru Hike
Navigating the JMT Permit system, setting daily mileage goals, and selecting resupply destinations In the second chapter of the John Muir...
Jun 12, 2022
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