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Two run coaches outline minimum recovery times before racing again after a marathon: at least two weeks for an all-out 5K, three weeks for a 10K, five to six weeks for a half, and eight to 12 weeks for another marathon. They suggest seven days of walking and gentle movement with no running, up to two weeks off for some, and recovery checkpoints like sleep, soreness, and normal easy pace.
the5krunner compiled new firmware features and improvements for Polar and Hammerhead for the week ending October 3, 2026, excluding bug fixes. This roundup is updated weekly, with the full content available in its site article.
The LetsRun podcast breaks down Vinny Mauri's incredible Chicago Marathon buildup and discusses whether he can challenge the American record. The episode also covers Jakob Ingebrigtsen, Clayton Young's hamstring injury, Jacob Kiplimo and more.
Coach Jeff of Runners Connect, drawing on registered dietitian Amber Velasquez, outlines 7 warning signs of underfueling during peak training blocks: fatigue that rest days don't fix, slipping paces, missed or irregular periods in women, lower sex drive in men, getting sick more often, bone stress injuries, and irritability or low mood.
Choosing between the Samsung Galaxy Watch Ultra 2 and the Apple Watch Ultra 4 starts with your phone ecosystem: the former does not work with an iPhone, and the latter does not work with Android. The article compares what each side offers an athlete in battery, GPS, health sensors, diving, safety features and price.
The Galaxy Watch Ultra 2 lasts twice as long between charges as the Galaxy Watch 9, is the only one of the two that supports fast charging, and is built for harder use. The Ultra 2 comes in only one large 47mm size, so for many athletes wrist size becomes the deciding factor.
Samsung Galaxy Watch Ultra 2 has an 800mAh battery, faster charging, a brighter display and a dive certification, but Samsung quotes the same 60 hours of everyday battery life as the original. Owners of the original Ultra do not need to upgrade, and a discounted original still suits some new buyers.
Amazon has kicked off Prime Day deals early: the Adidas Supernova Prima 2 is down to $100 in men’s (from $160 at Adidas, about 38% off) and $80 in women’s (half off), the lowest prices in 30 days. It uses PEBA-based Dreamstrike+ midsole foam and straight support rods for stability, weighs just a hair more than the Supernova Rise, and in testing handled both speedwork and easy runs.
Apple Watch Series 12 and Ultra 4 reach 80% in 30 and 45 minutes, while Galaxy Watch Ultra 2 reaches only 40% in 30 minutes, and Galaxy Watch 9 does not support fast charging. The Ultra 2's longer battery life offsets part of the charging speed gap, and the EP-OL715 charger is covered in full.
the5krunner published a Galaxy Watch upgrade guide covering five generations—Watch 4, 5, 6, 7 and 8—to help users decide which model to upgrade to. Written by tfk and updated on 2 October 2026, it is part of the site's GPS watch and sports tech coverage dating back to 2010.
Runner's World editors rounded up fall running gear for changeable weather, including the Brooks Glycerin 23, the packable lululemon Fast and Free jacket, and the Tracksmith Session quarter-zip. The list also covers convertible gloves, a Satisfy SoftCell bandana, Janji long sleeves, Bandit CoolGrid 2-in-1 shorts, lululemon Mile Maker cold-weather pants, Adidas 3/4 leggings, a neck gaiter, an Energizer headlamp, JLab Go Air Sport+ earbuds, and Oakley Portal X sunglasses.
Samsung Galaxy Watch 9 has a 20 percent larger battery in the 40mm size and a new Snapdragon chip, but Samsung still quotes the same 30 hours as the Galaxy Watch 8. Most of the new health features also reach the Watch 8 through a software update, so Watch 8 owners should keep what they have.
Runner's World found that the Instagram account The Running Week posts running advice through a supposed Kenyan coach whose videos have up to 6 million views, but repeated backgrounds and odd movements suggest an AI-generated persona.
Starting January 1, 2024, 47-year-old New Zealand lawyer Shannon-Leigh Litt ran an ultramarathon distance every day, deliberately going an extra kilometer beyond Guinness's 50K minimum. By day 1,000, she had logged roughly 52,000 kilometers (32,311 miles) and set the women's record for most consecutive days running an ultramarathon distance, while working full-time in criminal law.
Marathon peak week usually falls three to four weeks before race day and is the highest-mileage week, with a long run typically 18 to 22 miles. Experts say the goal is not extra fitness but rehearsing fueling, pacing, recovery, and race-day routine, including a one-day carb load of 8 to 12 grams per kilogram of bodyweight and gels during interval runs over 60 minutes. Keep strength work, sleep more, and avoid chasing missed workouts before tapering.
Runner's World tested and selected 8 of the best running belts, covering brands like Nathan, SpiBelt, and AiRunTech.
The North Face releases the Offtrail Ultra trail running shoe as part of its Summit Series race kit, deliberately built without plates, an extreme rocker, or a towering stack height, aimed at real technical mountain terrain. It uses a single-molding, adhesive-free dual-density midsole that the brand says is lighter, more agile, responsive, and protective. The papaya and canal blue colorway echoes the orange and turquoise gear of the 1990 International Trans-Antarctic Expedition.
The Apple Watch Series 12 brings a new S11 chipset and a redesigned optical heart rate sensor, adding a Readiness Score plus overnight and daytime HRV trends, with background heart rate readings every 5 seconds. This review examines the new features, heart rate and GPS accuracy, and who should upgrade.
Whoop filed four trademarks in September 2026, including WHOOP CONNECTED CARE in the medical services class, plus WHOOP ONE, WHOOP PEAK and WHOOP LIFE for its membership tiers. Patents include a Whoop muscle oxygen sensor, an Oura ring with a removable battery and a Google cuffless blood pressure method.
Suunto's OW265 (reported to be the Race 3S) has entered FCC certification, Garmin filed several unnamed models, Polar's H12 heart rate monitor appeared in Brazil, and Apple's five Apple Watch grants arrived with its autumn launch. These are the regulatory developments for September 2026 summarized in the founding issue of the5krunner's new Regulatory Filing column.
The founding issue of Legal Files covers September 2026. A jury awarded Taction about $5.7 billion against Apple over the Taptic Engine used in the iPhone and Apple Watch. UnaliWear filed a second import ban complaint naming Samsung, Google and Garmin, and IOENGINE sued Garmin and Samsung over patents.
Runner’s World presents The Runner’s World Guide to Common Running Injuries: Achilles Tendinitis, with physical therapist Winnie Yu, PT, DPT, CSCS, and podiatrist Alicia Canzanese, DPM, ATC. Your Achilles tendon bears three times your body weight when you run, and overuse creates tiny tears. Common causes include overtraining, tight calf muscles, and changing shoes suddenly. The guide covers insertional and non-insertional types, green, yellow, and red flags, and recovery through strength exercises, without pressing directly on the inflamed tendon.
A run/walker broke a fitness plateau by using heart rate zone training. On expert advice, she adjusted run/walk paces and interval ratios by heart rate zone. After two weeks, every pace rose by 0.1 mph, except zone 5 run pace, which rose by 0.2 mph, while heart rate stayed the same. She now distinguishes easy from hard more subtly and tolerates hard training better.
For big races like the New York City Marathon and Boston Marathon, race morning can mean hours of waiting. Coaches suggest a dress rehearsal the week before: wake early, eat, then wait three or four hours before running. Dietitian Maddie Alm recommends eating every two to three hours, with about 60 grams of carbs four hours before, and 30 to 45 grams an hour before, finishing electrolytes an hour ahead.
Runner's World picks 9 top running lights, covering headlamps, chest lights, waist lights, and shoe clip-ons. For everyday road running, 200–400 lumens is recommended; for trail running, 400–800 lumens; ultrarunners often pair a headlamp with a waist light for depth perception and redundancy.
Kae Ravichandran won the inaugural nonbinary division of the 2023 Boston Marathon, but no one told her she had won, there was no prize money or podium, and her trophy was a plastic vase engraved "Boston Marathon 2023" mailed to her Vermont home two months later. Three and a half years on, she is a 28-year-old pediatrics resident at the University of Vermont, hoping to be the gender-affirming doctor she never had growing up.
Trail Runner's editors tested dozens of pieces of trail running gear from Chamonix to Chicago and picked the 6 most recommendable timeless items for September. These include both the latest models and enduring classics.
This week covers Fenix 8 heart rate loss on 23.39, a Fenix 8 Pro map download stuck at 51 percent, SuuntoPlus Guides not syncing, Garmin Express on Mac failing with Fenix 9 Pro, a full Edge Explore 2 blocking map updates, Fenix 9 firmware 6.38 bugs and Fenix 7 installing the wrong TopoActive region. It also covers Connect on iOS wiping Apple Fitness effort ratings and draining iPhone batteries, the Suunto app Min HR crash, Forerunner 570 audio muting on track skips, Race S bootloops on charge, the missing Sleep Coach rhythm chart, Edge 1050 routing mode, spoken direction and GPS faults, AirPods reconnect loops with Garmin watches, and Forerunner 970 vibration and track distance problems. Wahoo ELEMNT Roam 3 screen readability and Suunto Race 2 interval sets round out the list.
Wellness Project Healthspan separates long-term health into eight independent areas instead of averaging them into a single biological age. Each factor displays its inputs, its confidence level, and the research behind it, while missing data remains unassessed. Read the full post at Wellness Project Healthspan: Eight Factors Instead of One Biological Age.
Runners lose about 1.3 liters of sweat per hour on average, but individual rates range from 0.2 to 5.0 liters. Calculate yours by weighing before and after a 60-minute run and adding back what you drank: every kilogram lost equals 1 liter of sweat. For runs over 60 minutes, drink between half and your full sweat rate, never more. Finishing heavier than you started warns of hyponatremia.