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Lessons From

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Notes On

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Screenshots of comparative heart rate data and summary statistics: Garmin Fenix: 4; Whoop: 0.

Should Whoop change its name to Whoops?

Lactate Test #5: Progress

— Lactate Testing

Comparing Data: Whoop vs. Garmin Fenix 2

Lactate Test #4: Stupid is as stupid does

— Lactate Testing

Training on a treadmill: Accuracy versus precision

Gradient: Small changes in angle, big differences in climb rate

Slow & steady is boring. Is it really necessary?

Lactate Test #3: Moving in the right direction

— Lactate Testing

Planning a training season

Lactate Test #2: What happened to aerobic capacity?

— Lactate Testing

Lactate Test #1: Where am I starting from?

— Lactate Testing
Sand Castles: A mental model of endurance training

Sand Castles: A mental model of endurance training

Making the best recovery test even better

Clogging up the Drain: Why you're forced to slow down

Caffeine: How a man can feel like a boy

How to destroy aerobic capacity

Skimo fitness tests

Do it before you're ready

It's not the speed; it's the terrain.

Learn the language

Can gambling theory stop overtraining?

How to run a 4-minute time trial

It's just dark.

How to come back from an unplanned break

Why I stopped using HRV apps

Why I stopped using HRV apps

Putting Humpty Dumpty back together again

Jan Olbrecht & the Magic Bullet Theory

Is sponsorship a sin?

Guy's Gone

The Talent Myth