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Hi runners, 👋🏼 Katelyn here with newsletter #541!

Between scorching temps, tactical racing strategies, and that breathless feeling on your runs, today's newsletter is packed with practical tips and science-backed insights to help you train smarter—even when the weather (or your lungs) aren’t cooperating.

From Breaking4-style drafting to choosing the right daily trainer, we’ve got something for everyone.

Here’s what’s inside:

😮‍💨 Out of breath while running? Here’s what’s really going on: Discover the most common causes of breathlessness while running—and how to fix them so you can run stronger and more comfortably.

🌀 What is drafting? How this controversial tactic can help you steal back seconds: Used in Kipchoge’s sub-2 marathon and Kipyegon's 4-minute mile attempt, this racing trick can work for you too.

🌡️ What's the ideal temperature for a perfect race? Is there such a thing as perfect running weather? Science says yes—and it’s cooler than you think.

🦵 9 great unilateral exercises to help correct muscle imbalances: Build strength and stability where you need it most—one side at a time.

👟 Saucony Ride vs the Saucony Guide: Two fan-favorite daily trainers go head to head—find out which one fits your stride.

Happy running! 🏃🏻‍♀️⭐

Katelyn Tocci
Managing Editor
Head Coach

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

😮‍💨 Why Do I Struggle To Breathe When Running? And What To Do About It​

😮‍💨 Struggling to catch your breath during a run? You’re not alone.

Whether it’s fitness, pacing, or something deeper—like asthma—there are real reasons behind that breathless feeling 🏃‍♀️💨.

This guide breaks down the most common causes and offers practical tips to help you breathe easier and run stronger! 💪🫁

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

🌡️ What's The Ideal Temperature For A Perfect Race?​

🌤️ Ever wonder what the perfect running weather really is?

Whether you're chasing a PR or just want a smoother race day, temperature and conditions play a big role 🏃‍♀️❄️.

This guide breaks down the ideal temps for peak performance—and helps you choose a race with the best possible weather. 🌧️✅

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

🦵 9 Great Unilateral Exercises To Help Correct Muscle Imbalances​

💪 Most strength exercises use both sides of your body at once—but training one side at a time has major benefits too!

🦵💥 Unilateral exercises help correct muscle imbalances, improve stability, and boost performance.

This guide breaks down the best moves to build balanced, injury-resistant strength. 🏋️‍♀️🔥

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

🌀 What Is Drafting? How This Controversial Tactic Can Help You Steal Back Seconds​

🏃‍♂️💨 Drafting isn’t just for cyclists—runners can use it too!

By tucking in behind another runner, you can reduce wind resistance, conserve energy, and run more efficiently.

From Kipchoge’s sub-2 marathon to your next race, this sneaky tactic might just help you steal back a few valuable seconds. ⏱️🔥

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

What’s A Good Marathon Time? Average Marathon Times By Age, Sex + Ability

​WATCH: Saucony Ride 18 vs Saucony Guide 18 l Which Shoe is Better?​

Senior editor Alex Cyr reviews and compares two of Saucony's most popular everyday running shoes: the Guide 18 and the Ride 18.

Both are designed for training runs, and here, Alex breaks down where each shoe performs best, how they differ from one another, and which shoe you should buy based on your specific needs.

The Ride 18 is a super-comfortable and lightweight daily trainer, whereas the Guide 18 is a highly-cushioned stability shoe. Watch the video to learn more about how they differ.

QUICK SPRINTS

• ​Mouth Vs Nose Breathing While Running: A Detailed Comparison​
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• ​Hydration For Runners: Everything You Need To Know
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• ​Muscle Imbalances In Your Legs: 8 Exercises To Identify And Fix Them​​