WHOOP, I did it again.

In 2018, I did a thorough test of WHOOP and sent it back for a refund. Is WHOOP 4.0 any better? (Nope.)

Five Benefits of Training in Silence

Silence doesn’t just remove noise—it reveals signal. And multiplies it by ten.

Free PDF: How to Design a Training Plan

Check out this 39-page summary of how to design a detailed training plan.

Is light equipment overrated?

No, a -1% in weight can mean +5% in speed. Here's how to figure it out.

How much faster is skimo race gear?

A lot. Based on some back-of-the-napkin testing, every 1% increase in total system weight led to a 5% decrease in uphill speed.

Sand Castles: A Mental Model of Endurance Training

Learn how training endurance is like building a sandcastle. If you get the mix wrong, your castle will collapse.

Plan your attack.

Decide where and how to apply your strengths—and make up for weaknesses.

Preview the course.

Redlining at a race pace is not the time to figure out where to go.

The Skimo Cheat Sheet: 32 Tips

Thinking of a last minute skimo race this season? Use the Cheat Sheet.

Why Transitions Matter ☝️

Do them well, and skimo transitions will be an insignificant portion of your race. Do them poorly, and you'll lose to that guy you can't stand.