Jeff Dengate
Runner-in-Chief
Jul 22, 2025 Runner’s World and the director of product testing. He has tested and reviewed running shoes, GPS watches, headphones, apparel, and more for nearly two decades. He regularly tests more than 100 pairs of shoes each year, and once had a 257-day streak running in different models. Jeff can usually be found on the roads, racing anything from the mile to a marathon, but he also enjoys racing up mountains and on snowshoes. When he’s not running, you’ll probably find him hanging from a ladder making repairs and renovations to his house (he’s also director of product testing for Popular Mechanics).
The 11 Best Treadmills of 2025
They’re smarter than ever, giving you plenty of training options if you prefer to move your winter running indoors.
What Wall? Run Strong After Mile 20 of Your Marathon With These Key Tips
Plus some tips on how to get started.
Are You Running Too Fast on Easy Days? Here’s Why That’s Bad
Running too fast will leave you too tired to hit your splits in workouts. We have tips to dial in the right speed.
Why—and How—You Should Run Twice a Day
Plus some tips on how to get started.
The 8 Best Running Headphones to Keep You Motivated
Aug 29, 2025.
How We Incorporate Walk Breaks Into Our Run Strategy
Alternating bouts of running and walking can help new and experienced runners build speed and run longer.
The Fastest Shoes at the 2025 World Championship Marathons
Adidas, Asics, and others glided over the streets of Tokyo, but Nike was left off the podium.
What the Heck Is VO2 Max? And Can You Improve Yours as You Get Older?
VO₂ max naturally decreases as you get older, but here’s how to slow (or reverse) that.
No, You’re Not a Failure if You Take a Break During a Long Run
Revolutionary new engineering and materials lead to big running economy gains.
The 8 Best Running Shorts for Ushering in Crisp Fall Weather
Our editors tested several bottoms to determine the top shorts for runners.
The Nike Vomero Comes in 3 Different Flavors. We Help You Decide Which You’ll Like Best.
The Vomero 18, Plus, and Premium are max-cushioned trainers, but have some key differences.
Science Shows Us How to Run Like Elites, But Should You Change Your Form?
Sep 2, 2025.
The Asics GT-2000 14 Proves That Stability Shoes Don’t Have to Be Bricks
Other Hearst Subscriptions.
We Took Satisfy's $290 Trail Shoe, The Rocker, For a Run. Here's What to Know
We also look at a $110 Ciele hat and a Raide belt that costs $149, and talk why they may be worth the price.
Skechers Dropped Three New Shoes. Will Any Become a Must-Have for Runners?
Our testers put the new Skechers Aero line through their paces. Find out if any are contenders for the next best running shoes list.
Everybody Says Rabies Shots Are Painful—But They’re Nothing Like Thigh Soreness the Day After a Marathon
Get the vaccination. It won’t interrupt your marathon training.
Tracksmith Has a New Trail Running Shoe. Can It Handle the Trails You Run?
We put the Eliot Range to the test over everything from rocks and roots to asphalt to see how it performs.
The New Balance Fresh Foam X 880 v15 Gets Softer, but Stays Affordably Priced
With more foam underfoot, you’ll find the 880 pushes into max-cushioning territory.
Here’s How Many Pairs of Running Shoes You Really Need in Your Rotation
Aug 22, 2025.
Hit a Stoplight? Go Ahead, Smash That Pause Button on Your Watch
There are two instances when you should not stop your watch mid-run, even if some of us do it anyway.
No, Your Shoes Didn’t Cause Your Injury
Most running injuries are a result of errors in training—you did too much, too soon.
Hoka Cielo X1 2.0 Review: A Race Day 'Rocket Ship' For Your Best Efforts
Bouncy foam and a radical rocker combine to propel you forward in competition.
The Adidas Adizero Evo SL is The Best Running Shoe of 2025 (So Far)
It's soft enough for long runs, responsive enough for speedwork, and costs just $150.
How to Avoid Injury and Get Faster
Make strides in your training with these tips.
Save Hundreds on The Centr Runr-S Treadmill For Prime Day
It’s a treadmill for road runners, by road runners.
Our Favorite Women's Running Shorts for Peak Performance
Our first-time half-marathoner learned how short stops help her build time and distance.
The Best Sunscreens for Runners Who Hate Greasy Skin and Stinging Eyes
Protect yourself from the sun’s harmful rays mile after mile.
This Pacing Tip Will Have You Running Your Fastest 5K
How planning ahead will help you crush your next 5K.
A Woman Will Eventually Break a 4-Minute Mile. Will It Happen This Week?
I visited the champion at her training camp in Kenya. Here’s what I learned and what it will take for her to succeed.
Puma Says the Fast-R Nitro Elite 3 Is the Fastest Marathon Racing Shoe. But Is It Right for You?
Jun 16, 2025.
The 13 Best Men’s Shorts That Provide Airflow, Storage, and Support
We cover the latest trends—unlearned: better pockets—and what to look for when shopping for the best men’s bottoms.
Hoka Cielo X1 2.0 is a Speedy Racer. Here's Why
With a thick midsole and extreme rocker, the Cielo X1 2.0 looks chunky, but we've found it can absolutely fly.