Training Science & Coaching Insights

The RaceLabs Blog

Expert articles on endurance training science, coaching strategies, and the technology behind better performance.

All Articles

Training Education

The 80/20 Rule of Training: A Complete Guide to Polarized Training

Discover why elite endurance athletes spend 80% of their training at low intensity and 20% at high intensity — and how you can apply the same science to get faster.

Feb 2510 min read
Coach Business

How to Choose an Online Endurance Coach: The Complete Guide

Finding the right coach can transform your performance. Here is what to look for in credentials, communication style, methodology, and technology when choosing an online coach.

Feb 188 min read
Performance Science

Heart Rate Zone Training: The Definitive Guide for Endurance Athletes

Master the five heart rate zones, learn how to calculate yours accurately, and discover why training in the right zone at the right time is the key to endurance performance.

Feb 1011 min read
AI & Technology

How AI is Transforming Endurance Coaching in 2026

From automated workout generation to real-time training load optimization, artificial intelligence is giving coaches superpowers. Here is how AI is reshaping endurance sports.

Mar 59 min read
Performance Science

VO2Max Explained: What It Is, Why It Matters, and How to Improve It

VO2Max is the gold standard of aerobic fitness. Learn what your VO2Max number really means, how it affects your race performance, and the most effective ways to raise it.

Mar 710 min read
Training Education

Zone 2 Training: Why Easy Running Makes You Faster

The secret weapon of elite endurance athletes is not speed work — it is slow, steady Zone 2 training. Learn the science behind why most of your training should feel easy.

Mar 89 min read
Coach Business

Best Coaching Platforms for Endurance Coaches in 2026

A detailed comparison of the top coaching platforms for running, cycling, and triathlon coaches — features, pricing, and what actually matters for growing your coaching business.

Mar 912 min read
Training Education

How to Structure a Training Week Using Heart Rate Zones

Stop guessing your weekly training plan. Learn how to distribute your training across heart rate zones for maximum performance gains without burnout.

Feb 2810 min read
Performance Science

Training Load Management: How to Prevent Overtraining with Data

Overtraining syndrome can derail months of progress. Learn how to use training load data, recovery metrics, and smart monitoring to train hard without breaking down.

Feb 2011 min read

Ready to Train Smarter?

Join thousands of coaches and athletes using AI-powered training analytics.