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· LetsRun · Runner Stories

Clayton Young Has a Torn Hamstring. He's Still Chasing the American Record in Chicago

Can an elite marathoner run 2:04 with a 12 cm hamstring tear? Clayton Young believes he can. Medical experts, coach Ed Eyestone, and Young himself break down the science and the risks behind his pursuit of the American record in Chicago. Chiropractor Josh Glass said it can feel good and look good on an MRI, but the unknown is how it will respond in the later stages of a race.

· Runner's World · Training Science

Runner's World Launches Guide to Common Running Injuries Course to Help You Build a Stronger, More Resilient Running Routine

Runner's World launches its Guide to Common Running Injuries course, led by experts including Doctor of Physical Therapy Winnie Yu, available exclusively to Runner's World+ members. The course covers eight chapters: shin splints, IT band syndrome, plantar fasciitis, Achilles tendinitis, runner's knee, hamstring strain, stress fracture, and lower back pain, teaching runners to recognize injury signs, decide when to modify training versus seek medical care, and follow guided return-to-running progressions plus strength and mobility routines.

· Runner's World · Shoes & Gear

Editor-Favorite Running Shoes Are Marked Down for Prime Big Deal Days—Save on Brooks, Asics, Saucony, and More

During Prime Big Deal Days, editor-favorite running shoes from Brooks, Asics, Saucony, and more are discounted by up to 53%. Deals include the Asics GlideRide Max, Saucony Endorphin Pro 4, Brooks Hyperion Max 3, Saucony Sonicblast, Saucony Guide 18, Asics Gel-Nimbus, Brooks Adrenaline GTS, Brooks Ghost Max, Asics Novablast 5, and more.

· Runner's World · Training Science

Strength Training for Runners: The 10 Best Exercises

Runner's World presents a strength training plan for runners with 10 exercises, recommended twice a week, which can be added to easy run or cross-training days. The moves include plank, core twist, scorpion, back extension, squat to overhead press, overhead forward lunge, stability ball pike-up and leg curl, and more, with reps, targeted muscles, and modifications or progressions listed for each.

· Runner's World · Shoes & Gear

Brooks Ghost Max 3 Still 41% Off After Prime Day

The Brooks Ghost Max 3 remains discounted 41% after Prime Day. The max-cushioned trainer uses a thicker DNA Loft v3 supercritical EVA midsole for a softer ride, weighing 11.2 ounces in men's and 10 ounces in women's versions. Testers praised its wide-foot-friendly fit, comfort, and heat management.

· Runner's World · Shoes & Gear

Saatva Has Mattresses 20% Off During Its Prime Day Competitor Sale

Saatva is running a Prime Day competitor sale with 20% off purchases of $1,000 or more using our Runner's World exclusive code. The sale includes the Saatva Classic, Saatva RX, and Solaire, which offers 50 firmness settings adjustable on each side. All mattresses include free white-glove delivery and old mattress removal, a 365-night home trial, and a lifetime warranty, with a $99 pickup fee for returns.

· Runner's World · Training Science

Missed Miles in Marathon Training? Here’s What You Don’t Want to Do When Catching Up.

Coaches told Runner's World that missing a few marathon-training runs won't ruin a build, but cramming those miles into an already demanding long run is the biggest mistake, raising recovery demands and compromising the training ahead. Instead, spread small additions across midweek easy runs, split the long effort, or add low-impact cross-training.

· Runner's World · Shoes & Gear

Our Favorite Walking Pad Is 37% Off for Prime Day Big Deal Days

Runner's World's recommended GoYouth Walking Pad is 37% off during Amazon Prime Big Deal Days, priced at $180. It has a max speed of 6 mph, a 300 lb weight limit, weighs 57.3 pounds, has a 41.3-inch deck, and sits just 6 inches off the ground. It features multilayer cushioning, a remote, and an LED screen showing steps, distance, and calories.

· Runner's World · Training Science

The 5 Best Slant Boards for Strengthening Your Knees and Calves

Runner's World tested five slant boards for strengthening knees and calves. StrongTek's flagship model earned top pick with wood construction, five angle settings, and rubber carrying handles; its Portable version is the smallest one-piece board here, made of plastic with four settings. Wolf Wedge is 27 inches wide and fixed at 15 degrees. Slant Board Guy's Standard and Flex Board are both fixed-angle, with the Flex Board adding three resistance-band hooks.

· Runner's World · Shoes & Gear

The 8 Best Treadmills of 2026

Runner's World tested and selected the 8 best treadmills of 2026. The NordicTrack Commercial 1750 is Best Overall, while the Horizon T101, at a sale price of $600, is Best Value. Other picks include the Horizon 7.0 AT, NordicTrack Commercial 2450, ProForm Carbon, Echelon Stride-6, Bowflex T9, and Urevo CyberMega.

· Marathon Handbook · Training Science

Chicago Marathon Pace Calculator: Your Mile-by-Mile Race Plan

Marathon Handbook released a mile-by-mile Chicago Marathon pace calculator that builds an interactive pace plan for every mile of the course by mapping every turn, bridge and elevation change. The tool is calibrated against thousands of performances from the last four races and adjusted for race-day weather.

· Runner's World · Training Science

These 5 Hip Extension Exercises Help You Strengthen the Right Muscles for a Powerful, More Efficient Stride

Certified strength coach Samantha Rothberg recommends 5 hip extension exercises to strengthen the glutes and hamstrings: single-leg glute bridge, deadlift, kickstand deadlift, glute bridge walkout, and barbell Romanian deadlift. Do each for 4 sets of 8 to 10 reps. These moves target the often-neglected posterior chain; the gluteus maximus drives push-off and stabilizes the hips, while the hamstrings extend the hip and add force, helping improve running efficiency and prevent overuse injury.

· The 5K Runner · Shoes & Gear

Google Fitbit Edge: Specs Leaked, All We Know So Far

Leaked images and a spec table name Google's next tracker the Fitbit Edge, with a 7-day battery, GPS, notifications and support for both Android and iOS. The product has not been officially announced; all of the above information comes from leaked material.

· Runner's World · Training Science

The Runner’s World Guide to Common Running Injuries: Hamstring Strain

Runner’s World releases the hamstring strain installment of its common running injuries guide, with physical therapist Winnie Yu and other experts explaining the difference between acute and chronic strains, their causes, and rehab methods. Acute strains often occur suddenly during sprinting or hill running, while chronic strains build over weeks or months from repeated overload and glute fatigue. The article gives red, yellow, and green pain-signal criteria and lists prone hamstring curls, elevated bridges, and single-leg bridges as rehab exercises, plus prevention advice on gradually increasing hills, speedwork, and mileage.

· Runner's World · Racing

Here Are the Results from the Twin Cities 10 Miler and Marathon

The TC 10 Mile and Twin Cities Marathon were held Sunday, starting in Minneapolis and finishing in St. Paul, with more than 18,000 combined finishers. Leo Goodman won the men's 10 mile in 49:14, and Elizabeth Klecker took the women's title in 57:33. Victor Shitsama (2:12:20) and Lilian Chebii (2:25:26) won the marathon.

· Runners Connect · Training Science

How Many Carbs Do You Burn a Day? Asleep and on the Run

The article estimates carb burning for runners from calorie burn and the share of energy from carbs at each intensity. For a 150-pound man, a rest day burns about 245 grams of carbs, 8 hours of sleep about 45 to 70 grams, an easy mile about 16 grams, a marathon-effort mile about 22 grams, and an interval-effort mile about 27 grams. It suggests eating carbs before runs longer than about an hour, with 50 grams (about 200 calories) taken 30 to 60 minutes before starting.