Running
Kipchoge, 41, wins the Melbourne Marathon in a course record
Abraham Spring
Abraham Spring is the founder and editor of Unbroken Review. He has coached endurance athletes for more than 20 years, is the author of The Unbroken Protocol (2026) and has completed more than 100 days of silent vipassana meditation. He also founded Unbroken Protocol, the coaching company that publishes this title. We disclose that relationship on every article.
Stories by Abraham Spring
Cycling
Paul Seixas, 20, becomes the youngest winner of Il Lombardia
Running Analysis
56:51, a European record and a women-only world record: the half marathon’s four fastest weeks
Swimming
Tom Dean’s relay team sets a British Channel record: three minutes short of the world mark
Tech Analysis
How SRAM beat the UCI over gear limits, and what did change on pro bikes in 2026
Tech
Nike’s Alphafly 4 goes on general sale: what the new super shoe changes
Tech Explainer
Apple Watch now gives you a daily readiness score. Here is what is behind it
Tech
Garmin’s Enduro 4 promises 320 hours of GPS, with the sun’s help
Tech
A watch that reads your sweat: what a new sensor can and cannot yet do
Tech Explainer
Glucose monitors on elite athletes show readings far outside “normal”, and why that is not a warning sign
Tech Explainer
Can an AI chatbot write your training plan? What the evidence says so far
Mind Explainer
When the sleep score keeps you awake: the rise of “orthosomnia”
Mind
The IOC wants every elite athlete screened for mental health, and says sport, not just the athlete, is responsible
Mind Explainer
Mindfulness training makes “flow” more likely, a review of trials finds
Science Explainer
Heat, altitude or both? A review of 23 studies weighs the options for environmental training
Science
Two breathing “hacks” put to the test. Neither made athletes faster
Science
What running a marathon does to the heart in the hours afterwards
Science Explainer
Polarised or pyramidal? The best evidence says it depends on who you are
Science Explainer
Low-carb and keto diets in endurance athletes: the first week is the hardest, a review finds
Science Explainer
Why elite cyclists are training in heat suits after altitude camps
Running Analysis
Two world records and four course records: the year the marathon got faster everywhere
Running
Kipruto breaks away to win Chicago in 2:01:09 as Feysa defends her title
Running Feature
3:42.66: how Josh Kerr took down the oldest record in middle-distance running
Running Analysis
The Commonwealth Games dropped the marathon for the first time since 1930. What that says about endurance sport
Triathlon
Vilaça wins the world title by finishing second as Beaugrand completes a perfect season
Cycling Analysis
Enric Mas finally wins a Grand Tour after Pogačar’s Vuelta ends in a crash
Cycling Analysis
Giro, Tour, rainbow jersey: Demi Vollering’s season for the record books
Science Explainer
A marathon temporarily weakens the heart’s right side. Ten years of racing did not, study finds
Mind Explainer
Choking under pressure is not a character flaw. A review of 21 studies shows it can be trained against
Science Explainer
Five-minute “exercise snacks” improved fitness in inactive people, review finds
Science Explainer
Heavy lifting made endurance cyclists faster, without raising their VO2max
Science
Four in five elite female endurance athletes at risk of energy deficiency, Finnish study finds
Science
Caffeine before work in the heat raised core temperature and heart rate, trial finds
Triathlon
Knibb snatches Kona title in the final mile as Luis wins on debut
Triathlon Analysis
Two years, two champions on the roadside. What Kona’s last mile does to the human body
Science
No recovery method beat simply resting, new analysis of endurance trials finds
Running Feature
1:59:30, six months on: how the two-hour marathon finally fell, and what it changed
Mind Explainer
A tired mind makes worse decisions on the field, meta-analysis finds
Running
Assefa limps home in a course-record 2:11:04 as Adola wins Berlin again
Mind Explainer
Exercise reduces depression and anxiety across every group studied, review of 79,551 people finds
Science Explainer
Ring, strap or watch? What the best evidence says about your overnight HRV
Triathlon Analysis
Eighteen seconds in Nice: Wilde holds off Blummenfelt as Knibb rewrites the 70.3 record book
Science Explainer
‘220 minus your age’ gets endurance athletes wrong, survey of 4,375 finds
Mind Explainer
How slowly should you breathe to calm down? Two 2026 trials give a more nuanced answer
Science Explainer
Strength and mood shifted across the menstrual cycle, but no two athletes followed the same pattern
Science Explainer
Five more minutes of sleep and two of brisk activity: the small changes linked to an extra year of life
Mind Explainer
The mental-health benefit of walking levels off, and the plateau arrives earlier than you might think
Science Explainer
Athletes sleep well before they race. It’s the night after that goes wrong
Trail & Ultra Analysis
The summer 100-mile racing got faster
Cycling Analysis
Pogačar’s fifth Tour was the fastest ever ridden, in a heatwave
Cycling
McNulty’s 33 km solo in Montreal ends a 33-year American wait for the rainbow jersey
Science Analysis
The Enhanced Games promised a flood of world records. The results told a different story
