Running Weekly

Clayton Young will chase the AR on a torn hamstring

Clayton Young landed in Chicago with a torn hamstring and says it has not hurt in a single workout. He is still going after the American record on Sunday.

Races and results

Young in Chicago, hamstring quiet, American record still the plan

Clayton Young has arrived in Chicago and says his torn hamstring has not been hurting in workouts, and he is still chasing the American record Sunday, per Chris Chavez. Charles Hicks, who ran 2:04:35 in the spring, says he trained at altitude in Park City instead of Eugene.

David Monti 馃
@d9monti
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We've had to take it a mile at a time, a day at a time, to make sure the hamstring is OK.
Oct 9, 2026 路 View on X

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How they train

New study says 100 grams of carbs an hour beats 60

James Morton posted a new study showing performance benefits of 100 grams of carbohydrate per hour over 60 across four hours of cycling. Brady Holmer's verdict: "Good week to be a carb." The account LoreofRunning pushed back on the mechanism, arguing very high intakes delay fatigue by something other than fueling the muscle.

@LoreofRunning
@LoreofRunning1
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beginning of the end for metabolic theory that muscle glycogen/exogenous CHO is obligatory fuel for exercise performance
Oct 9, 2026 路 View on X

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