Marathon Handbook

We are a passionate group of coaches and runners who enjoy sharing our knowledge about running and supporting others in their running adventures. Our mission is to inspire and assist people in their running goals. Whether you're lacing up your first pair of running shoes, preparing for your initial marathon, or aiming to achieve your best in a 100-mile ultramarathon, we're here to guide you every step of the way.

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Top Contenders Vanish As The Men’s Field Shifts

1 week ago | marathonhandbook.com | Amby Burfoot

Jim Walmsley, winner of last year’s Western States 100 as well as three previous WS 100s, has disappeared from this year’s list of entrants. This presumably means that he is injured, and will not start the famous ultramarathon trail race through California’s Sierra Nevada mountains. The 47th official running of the WS 100 is scheduled for 5:00 a.m. Pacific time on Saturday, June 28.
Everything You Need To Know

1 week ago | marathonhandbook.com | Jessy Carveth

Philadelphia plays host this weekend to the third stop of the inaugural Grand Slam Track season, a new global league hoping to reshape the structure of elite track and field. Taking place at historic Franklin Field on the campus of the University of Pennsylvania, the two-day meet (May 31–June 1) will feature 96 athletes, 48 signed “Racers” and 48 invited “Challengers”, competing across sprint, hurdle, and distance events.
Boston Isn’t Built For PRs-And That’s What Makes It Great

1 week ago | marathonhandbook.com | Katelyn Tocci

Let’s be real. Boston isn’t exactly built for speed—unless you’ve got a strong tailwind and legs of steel. Between the relentless ups and downs, unpredictable New England weather, and crowded, narrow roads at the start, this course is more challenge than cruise. But if you can pull off a PR here, that’s not just impressive—that’s superhero-level stuff. Here’s my hot take: Boston’s not where PRs go to die, but it’s where they go to fight for their lives.
Conner Mantz Outkicks Kenyan Rival To Clinch Historic BOLDERBoulder Three-Peat

1 week ago | marathonhandbook.com | Jessy Carveth

Conner Mantz made history on Memorial Day at the 2025 BOLDERBoulder, becoming the first man to win three consecutive professional titles at the storied 10K race in Boulder, Colorado. In a dramatic finish inside Folsom Field, Mantz outkicked Kenya’s Daniel Simiu Ebenyo to win in 28:20, just two seconds ahead of the Kenyan, who clocked 28:22.
Strava Deletes Over 4 Million “Cheating” Activities

1 week ago | marathonhandbook.com | Jessy Carveth

Strava just quietly dropped one of its most consequential updates in years: 4.45 million activities have been purged from the platform’s leaderboards, the result of a machine learning system built to flag “improper” uploads. Most of these deletions come from activities logged under the wrong sport, from car rides posing as bike commutes, to GPS glitches masquerading as record-setting sprints, to, in some cases, full-on fabricated performances.
Deckers Stock Falls 20% After Hoka Reports Weakest Growth In Over A Year

1 week ago | marathonhandbook.com | Jessy Carveth

Deckers, the parent company of Hoka, reported slowing sales growth for the performance running brand — a miss that sent shares tumbling nearly 20%. Meanwhile, Swiss rival On Holding posted another strong quarter, intensifying the battle for market leadership. Hoka’s explosive rise over the past five years has made it a dominant player in performance footwear.
Eliud Kipchoge Signals Final Year Of Competitive Racing

1 week ago | marathonhandbook.com | Jessy Carveth

Eliud Kipchoge may be in the twilight of his competitive career, but he’s not walking away from the marathon world just yet. In an exclusive interview with Olympics.com following his sixth-place finish at the 2025 London Marathon, the 40-year-old Kenyan running legend suggested that this might be his final year racing at the elite level. While he stopped short of officially announcing retirement, his comments made it clear: he’s shifting focus. “I have nothing to prove,” Kipchoge said.
Russ Cook Completes 2,500-Kilomter New Zealand Run, Then Quietly Posts Full GPS Maps

2 weeks ago | marathonhandbook.com | Jessy Carveth

Russ Cook, the British ultrarunner and social media figure better known as the Hardest Geezer, has completed his latest headline-grabbing challenge: running the length of New Zealand, from Bluff at the southern tip of the South Island to Cape Rēinga at the top of the North. The feat took him 73 days and spanned more than 2,500 kilometers.
Garmin Rolls Out New Forerunners, And Locks Out Older Models From Key Updates

2 weeks ago | marathonhandbook.com | Jessy Carveth

Garmin dropped the Forerunner 570 and 970 last week, and if you’re the kind of runner who follows firmware updates like race results, you probably noticed something big: a whole suite of new features that, until now, didn’t exist on any Garmin watch. The 970 in particular is loaded with next-gen performance tools, some useful, some just geeky enough to need a manual. But as always with Garmin, there’s a catch. Most of those shiny new features? They’re staying put on the latest devices.
Nike Raises Prices Amid Tariff Pressures And Declining Digital Sales

2 weeks ago | marathonhandbook.com | Jessy Carveth

Nike is raising prices across a wide range of its adult footwear and apparel starting this week, with full implementation expected by June 1. The move, described by the company as part of “seasonal planning,” comes as trade tensions escalate and digital sales falter, hinting at broader systemic challenges. Nike’s manufacturing is deeply tied to Asia, where new U.S. tariffs are reshaping the economics of importing consumer goods.