πŸƒβ€β™‚οΈ Are you screwing up your long runs?


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Hi runners,

Jessy here with newsletter #598! πŸŽ‰

Happy Saturday! ​
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Here's what I have for you today
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  • πŸ“š Set for April 2026, Mary Cain's new memoir revisits the trauma behind her fall from teen phenom to whistleblower.
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  • πŸ‘Ÿ How wearing old running shoes can increase the risk of running injuries and address the common injuries caused by old running shoes.​
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  • πŸ‘€ New ankle-based device from Asics and TDK uses real-time data to support performance improvement.​
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  • 🚫 Top triathletes Sam Long and Hayden Wilde wore a banned Asics model, raising questions about enforcement and oversight.​
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  • πŸƒβ€β™‚οΈ Why long runs are important, what people get wrong, & how to do them perfectly.
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  • πŸ‘Ÿ WATCH: Review | ASICS Megablast versus Sonicblast | The Best ASICS Running Shoes Yet?

Get ready to get faster!

Jessy Carveth
Senior News Editor

β€‹πŸ“š Mary Cain to Release Memoir on Her Time with Nike and Salazar​

Mary Cain, once hailed as the future of American middle-distance running, is set to publish her memoir This Is Not About Running on April 28, 2026.

The book, announced this week by HarperCollins, promises a raw, intimate look at what happened when a teenage prodigy was pushed to the brink inside one of the most powerful training systems in sport.

β€‹πŸ‘Ÿ 11 Common Injuries Caused By Old Running Shoes Explained​

Runners can be funny about their running shoes. As our sport is relatively simple in terms of equipment, some runners place a lot of stock in the impact their running shoes have on their performance and health as runners.

While wearing certain running shoes isn’t likely to bestow you with superpowers that shave minutes off your long-held PRs or cure an ongoing, persistent case of IT band syndrome, there are certain injuries that wearing old running shoes may potentially increase the risk of.

β€‹πŸ‘€ ASICS and TDK Launch Joint Research Project on Athlete Motion Analysis​

ASICS and TDK, both official partners of World Athletics, have launched a joint research project to develop a wearable motion-sensing device aimed at helping athletes better understand and improve their performance.

β€‹πŸš« Triathletes Are Using Illegal Shoes To Win Races, And Brands Aren’t Happy About It​

In the latest twist in the ever-evolving world of super shoes, two of triathlon’s top stars, Hayden Wilde and Sam Long, have been spotted racing in a not-yet-approved model: the Asics Metaspeed Ray. ​
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And while neither athlete has been accused of wrongdoing, the incident has reignited conversations about rule enforcement, transparency, and accountability in elite racing.

β€‹πŸƒβ€β™‚οΈ How You’re Screwing Up Your Long Runs (& How To Get It Right)​

Many runners are conflicted or confused about the advice that long runs should normally be done at a slow and conversational pace.
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​In this post, we're going to dig into the details and reasoning behind this.

β€‹πŸ‘Ÿ WATCH: ASICS Megablast vs. Sonicblast l Which Shoe Is Right For You?​

ASICS just dropped two completely new running shoes: the Sonicblast, a snappy, plated sneaker made for fast workouts; and the Megablast, a comfy and responsive long running shoe.
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Like many of you, senior editor Alex Cyr was curious about how these pairs compare to other ASICS shoes, which one of the two is the better purchase, and whether or not they are worth adding to his rotation.
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Here, Alex takes you through a week of half-marathon training, where he tests both shoes on long runs and hill workouts, to help you decide if the Megablast and Sonicblast are right for you.

​The Ultimate Runner's Bundle​

The Ultimate Runner's Bundle combines all 4 of our premium courses (Half Marathon Masterclass, Marathon Training Masterclass, Ultra Runner's Playbook + 7 Day Motivation Challenge) in one cheaper package.

You get access to each of the below courses and all the bonus downloadable content - which adds up to over 16 hours of exclusive video tutorials and reams of extras: Check it out!​

Use the discount code SPRINT25 at checkout for 25% off!

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Looking for an online running coach? Whatever your goals, train with our managing editor, Coach Katelyn. Learn more about her online coaching.

Want to become a running coach? Check out our friends at UESCA. They do 100% online, at-your-own-pace coaching certifications for running and ultrarunning. More here.


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