Boston Marathon Explosions: A Firsthand Account

Boston Marathon Explosions: A Firsthand Account

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The New Sport of Quidditch

A sport from Harry Potter lore has many young runners under its spell

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5 New Squat Moves That Make You Stronger

Improve your running by putting a new twist on an old move

Boston Marathon Explosions: Amby Burfoot's Firsthand Account

Amby Burfoot is Editor at Large for Runner's World and winner of the 1968 Boston Marathon. He was nearly finished with the 2013 edition when the explosions occurred

5 Decisions Every Runner Must Make

By all means, run, but where and with whom?

social vs solo running
Should You Run Solo or In a Group?

There are perks to running with others—and alone. How to get the best of both worlds

best running socks
11 Best Socks for Workouts

Invest in quality running socks to take your workout to the next level. Here are the best socks for your next run

How to Become a Running Coach

Want to lead your local running club or charity team? Here’s how to do it

Exercise equipment you can use at home
6 New Tools For the Ultimate Home Gym

You don't need a gym membership to stay fit and lean. With these six pieces of home workout equipment and accompanying workout DVDs, you can get fit right in your own home

interval workouts: woman spin bike picture
10 Interval Training Workouts that Melt Fat

No matter whether you're a beginner or a veteran, these interval workouts will help you lose weight

two-a-days: woman running morning and night picture
Double Down—Should You Run Twice a Day?

Run twice a day?! You don’t have to be an elite athlete to divide and conquer

man running on track
A Comeback Plan for Runners

No more excuses! Here’s how to kick-start your running routine—and stick with it all year long

couple running outside
Beginner's Guide to Running for Weight Loss

A breakthrough plan to lose weight and start running—no experience necessary!

Women running out of the water in wetsuits
Yes, You Can Be a Triathlete

Tackling a triathlon can be daunting, even for fitness buffs, but it's not as hard as you think. With our training plan for swimming, biking, and running a sprint-length race, you'll earn bragging rights (not to mention a lean, hot body) in just 12 weeks.

Woman lunging and running
Twice the Workout, Half the Time

Combine two workouts into one and achieve greater fitness—in less time

woman stretching outside
Post-Run Stretches You Can't Miss

A 10-minute post-run yoga sequence that will improve your range of motion and prevent injury

man and woman running
The Magic Mile

How to adapt time-tested mile-repeat workouts to boost your fitness level or set a personal record

Woman running on treadmill
Treadmill Workouts

Four treadmill workouts that will spice up your winter training

Runner stopped to stretch leg
Double Duty

Run twice a day to get stronger and faster—sooner

Woman holding water bottle
Your Perfect Tempo

"Comfortably hard" runs are key to racing your best, at any distance. Here's how to add tempo runs to your mix

Runner putting ice pack on knee
Patellofemoral Pain Syndrome (Runner's Knee)

Here's how to prevent and treat one of the most common running injuries

before and after pictures Natombi Simpson
"Zumba Transformed My Body--I lost 90 Pounds and Counting!'"

Natombi Simpson believed that she'd never be less than a size 24. Now she's a size 8!

weight loss success Keoni Hudoba
This Personal Trainer Danced Off 142 Pounds

Keoni Hudoba sang and danced his way from obesity to a career in fitness

weight loss success Michael Knight
He Dropped 89 Pounds and Found a Career in Fitness

A chronic overeater, Michael Knight went from being an obese bodybuilder to a celebrity trainer

Weight loss success Gina Crome
She Lost 172 Pounds and Became a Dietitian

Dropping half her body weight inspired Gina Crome to help others overcome their own weight struggles

Rishi Sharma weight loss success
He Lost 110 Pounds—11 Years Ago

A trip to the hospital inspired a decade of healthy living for Rishi Sharma

Sissy Lusk
She Walked Away 210 Pounds

Sissy Lusk went from 345 pounds to 135 pounds and has kept it off for 11 years

Diana Barta
She Walked Off Weight—and Kept it Off!

Chronic quick-fix dieter Diana Barta committed to a healthy lifestyle and dropped 67 pounds

Michelle Parcher
Smaller Portions Led to a 71-Pound Weight Loss

Michelle Parcher, a mother of three, successfully dropped and kept off the baby weight (and then some) for five years and counting

Shira Miller
She’s Kept Off 50 Pounds for Two Decades

Shira Miller started her weight loss journey in the 90s and hasn’t looked back

weight loss before and after: Heather Fearneyhough
She Dropped Half Her Weight

Heather Fearneyhough’s children motivated her to shed 120 pounds

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Daily Calorie Calculator
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Pace Calculator
Whether you're wondering how quickly you'll finish your next race or exactly how fast you need to run to beat your PR, this tool has the answers
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Walking Calculator
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BMI Calculator
Do you need to lose a few pounds? Find out by calculating your body mass index, a basic indicator of healthy weight
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Body Fat Calculator
Get a gauge of your body's percentage of fat with this simple tool. Just enter your weight and a few measurements to get started
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Half-Marathon Jumpstart

Challenge yourself mentally and physically with a half-marathon. This 2-week training jumpstart will help you build your base before you embark on a 10-week training regimen.

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5-K Jumpstart

If you’re new to running, signing up for a race is the perfect way to kick off your routine and boost motivation. The Runner's World 5-K Training Jumpstart will help get you started—in just 2 weeks!