Runner at sunrise

For the dedicated athlete

Train with
purpose

Free personalized training plans and performance calculators built for runners, cyclists, and triathletes.

Free guide

Get the Ultimate Zone 2 Training Guide β€” free.

The complete protocol β€” heart-rate ranges, sample workouts for run, bike, and Hyrox, and the discipline elites use. Delivered to your inbox.

Plus weekly intel for runners, cyclists, triathletes, Hyrox athletes. Unsubscribe in one click.

Training Plans

Science-backed periodized programs based on Jack Daniels, Joe Friel, and 80/20 methodology. Export directly to your calendar.

Find Your Gear

Answer a few quick questions and get personalized equipment recommendations matched to your goals and budget.

Performance Calculators

25+ free tools to optimize every aspect of your training

🎽 VO2 Max & Fitness

Cyclist on mountain road

Why athletes choose us

Science meets
simplicity

Every calculator is built on peer-reviewed research and validated methodologies. No accounts required, no hidden feesβ€”just accurate tools for serious athletes.

Common Questions

Are these training plans really free?

Yes! Calendar (.ics) export is completely free with no signup. PDF and spreadsheet exports are available with a free email signup.

What training methods are used?

Our plans incorporate principles from Jack Daniels, Joe Friel, 80/20 Endurance, and proven ultramarathon coaching methodologies.

Can I customize the training plans?

You can set your experience level, weekly availability, race date, and preferred long workout day. Export to spreadsheet for full customization.

How accurate are the calculators?

All calculators use peer-reviewed formulas and established sports science. We cite sources and explain methodology for full transparency.