The Mastery Lab

Relearning Effort: Interoception, RPE, and the Hidden Skill of Internal Awareness Writings

Relearning Effort: Interoception, RPE, and the Hidden Skill of Internal Awareness

Modern athletes are surrounded by data. Watches track heart rate variability, power meters quantify every…

Elizabeth WaterstraatJune 15, 2026

Triathlon Racing in the Heat: How to Adjust Pace, Power, Heart Rate, and Hydration at 70, 80, and 90 Degrees Farenheit Writings

Triathlon Racing in the Heat: How to Adjust Pace, Power, Heart Rate, and Hydration at 70, 80, and 90 Degrees Farenheit

Heat changes the rules of triathlon performance. A pace or power output that feels sustainable…

Elizabeth WaterstraatMay 6, 2026

Mastery Moment with Katie M. Writings

Mastery Moment with Katie M.

Katie M., who works with Coach Elizabeth Waterstraat, shares her Mastery Moment - a shift…

Elizabeth WaterstraatApril 27, 2026

Mastering Durable Confidence: The Mindset that Matters Most for Triathletes Writings

Mastering Durable Confidence: The Mindset that Matters Most for Triathletes

Race morning. The nerves are screaming, the unknowns are looming, and no matter how well…

Elizabeth WaterstraatApril 24, 2026

What Shapes Our Coaching: The Multisport Mastery Approach to Endurance Training Writings

What Shapes Our Coaching: The Multisport Mastery Approach to Endurance Training

At Multisport Mastery, our coaching philosophy is built on a simple truth: athletes are complex,…

Elizabeth WaterstraatApril 19, 2026

Fix Your Swim Fast: 7 Proven Techniques to Improve Speed, Efficiency, and Confidence Writings

Fix Your Swim Fast: 7 Proven Techniques to Improve Speed, Efficiency, and Confidence

Why Most Triathletes Struggle in the Water - and How to Fix It If you’ve…

Elizabeth WaterstraatApril 9, 2026

7 Powerful Decisive Points in a 70.3 Race That Competitive Triathletes Must Master Writings

7 Powerful Decisive Points in a 70.3 Race That Competitive Triathletes Must Master

In a 70.3 race, success rarely comes down to a single moment. It’s shaped by…

Elizabeth WaterstraatMarch 24, 2026

Mastering Race Day: Strategy, Planning, and Execution for Triathletes Writings

Mastering Race Day: Strategy, Planning, and Execution for Triathletes

Race day rarely unfolds exactly as you expect and that’s precisely why so many triathletes…

Elizabeth WaterstraatMarch 20, 2026

Why Endurance Matters More Than Talent in Athletic Development Writings

Why Endurance Matters More Than Talent in Athletic Development

“Talent is insignificant. I know a lot of talented ruins. Beyond talent lie all the…

Elizabeth WaterstraatMarch 14, 2026

How Athletes Can Get the Best Sleep Before a Race: Evidence-Based Strategies for Performance Writings

How Athletes Can Get the Best Sleep Before a Race: Evidence-Based Strategies for Performance

The night before a race matters but the real sleep advantage starts days before. Sleep…

Elizabeth WaterstraatMarch 13, 2026

Stop Chasing Exact Numbers: Why Power and Pace Ranges Work Better in Training Writings

Stop Chasing Exact Numbers: Why Power and Pace Ranges Work Better in Training

Many athletes assume that the most effective training requires hitting a precise wattage or pace…

Elizabeth WaterstraatMarch 9, 2026

Anatomy of a Breakthrough: 5 Powerful Decisions That Change Performance Writings

Anatomy of a Breakthrough: 5 Powerful Decisions That Change Performance

One of the most rewarding parts of coaching is guiding an athlete to a true…

Elizabeth WaterstraatFebruary 26, 2026

Feeling Stuck? Breaking Out of the Overthinking Rut in Sport Writings

Feeling Stuck? Breaking Out of the Overthinking Rut in Sport

Periods of feeling “stuck” are part of sport. Performance plateaus, inconsistent results, or a run…

Elizabeth WaterstraatFebruary 23, 2026

Transitioning from Indoor to Outdoor Cycling Writings

Transitioning from Indoor to Outdoor Cycling

After a winter's worth of indoor cycling, athletes are eager to embrace a random warm…

Elizabeth WaterstraatFebruary 17, 2026

Our Coaching Framework Writings

Our Coaching Framework

At Multisport Mastery, we've established a coaching framework grounded in 20 years of experience in…

Elizabeth WaterstraatFebruary 11, 2026

Five Things You’re Missing with FTP Writings

Five Things You’re Missing with FTP

Functional Threshold Power (FTP) is widely used in triathlon to benchmark cycling fitness and prescribe…

Elizabeth WaterstraatFebruary 7, 2026

Why Durability Mattters Writings

Why Durability Mattters

Most triathletes train to raise fitness markers such as FTP, threshold pace, or VO₂max. Yet…

Elizabeth WaterstraatFebruary 2, 2026

Free Speed: Get Faster Without Doing More Writings

Free Speed: Get Faster Without Doing More

Most athletes believe speed is earned the hard way - more miles, harder sessions, higher…

Elizabeth WaterstraatJanuary 26, 2026

How To Run Your Best Ironman Marathon Writings

How To Run Your Best Ironman Marathon

You finished an Ironman. The bike felt controlled. You executed your plan. Then the run…

Elizabeth WaterstraatJanuary 24, 2026

Athlete Spotlight: Meet Kathryn Writings

Athlete Spotlight: Meet Kathryn

Meet Kathryn 👋🏻 Kathryn and I have worked together since 2011. A few years ago,…

Elizabeth WaterstraatJanuary 18, 2026