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Hi runners, Jessy here with newsletter #646! 🎉

Happy Saturday! ​
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Here's what I have for you today:

• ⏱️ Forget the guesswork; get your marathon potential down to the minute. Enter a few past race times and weekly mileage, and we’ll estimate how fast you can go.
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• 🗽 Live from NYC — Katelyn spoke with the elites racing on Sunday. Nervous laughs, big goals, even talk of ultras 👀. We have her top takeaways.​
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• 🩸 Even the world’s fittest athletes don’t always have perfect bloodwork. A decade of Olympic lab data reveals just how often “peak performance” looks anything but textbook healthy.
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• 🏃‍♂️ Should you run the day before your race? Absolutely. A short, easy shakeout run can calm nerves, loosen legs, and set you up for your best race; here’s how to do it right.
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• 💭 Wondering if your marathon finish time is good? We crunched the data from millions of runners to show what’s average, what’s impressive, and why your own goals matter most.
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• 👋 The greatest marathoner of all time has one last goal on the big stage, and a bold new vision beyond it.
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• 🏆 WATCH: New York City Marathon 2025 Preview: Sifan Hassan, Kipchoge & NYC Course Breakdown + Our LIVE Show
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Get ready to get faster!

Jessy Carveth
Senior News Editor

⏱️ Marathon Time Calculator: Predict Your Next Marathon Race Time

How fast could you really run a marathon?

Our Marathon Time Calculator uses advanced formulas built for real runners (not pros) to give a smarter, more realistic prediction of your race-day pace.

🗽 5 Lessons I Learned From the NYC Marathon Elites

Katelyn is on the ground in NYC this week — talking with the elites racing Sunday and soaking up marathon-week energy. 🗽🔥

From the expo buzz to candid moments in the press room, she saw nerves, big dreams, and serious fire from the world’s best.

Some are scared of the course, others are plotting history, and yes, one even hinted at ultras 👀.

Here are five things she learned before they take on New York.

🩸 Are Olympians Really The Pinnacle Of Health?

A decade of Olympic blood data just upended the myth of perfect health, with a surprisingly big chunk of athletes testing outside clinical norms.

Here’s what it really means when “elite” doesn’t equal “healthy.”

🏃‍♂️ Should You Run The Day Before a Race? Yes – How To Do A Shakeout Run

It’s not rest that makes race day magic, it’s rhythm.

A gentle shakeout run the day before your race can boost blood flow, focus your mind, and even help you go to the bathroom on time.

Here’s how to nail it.

💭 What Is A Good Marathon Finishing Time?: Breaking Down The Data

What’s a “good” marathon time, really?

From first-timers to sub-3 hopefuls, we break down the numbers, averages, and factors that define marathon success, and where you might fit in.

👋 Kipchoge’s Farewell Tour Will End in New York…But It’s The Start Of Something Wilder

Eliud Kipchoge will take his final World Marathon Majors start in New York, but his next challenge is even bigger.

After redefining speed, the GOAT of marathoning now plans to test himself on ice...

🏆 New York City Marathon 2025 Preview: Sifan Hassan, Kipchoge & NYC Course Breakdown + Our LIVE Show

The crew is heading to New York! Michael Doyle, Alex Cyr, and Katelyn Tocci preview the 2025 TCS New York City Marathon — diving into the elite fields, the legendary course, and what makes this race one of the world’s greatest running events.

We also reveal our picks, power-rank the World Marathon Majors, and share everything you need to know about our LIVE SHOW in New York City this Saturday!

QUICK SPRINTS

• The 7 Best Plyometric Exercises For Speed
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• How To Start Trail Running: 6 Tips For Beginners To Get Going
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• Everything You Need To Know About Running With Gels