The 80/20 training rule separates fast runners from stuck ones. Here is what polarized training actually looks like, backed by Stephen Seiler research.
Rachel Apa, a 24 year old Bucknell graduate running her first marathon for the Parkinson's Foundation in memory of her grandfather, died Sunday after collapsing in Central Park.
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A Retired Giro d'Italia Winner Just Ran the NYC Marathon in 2:27:12 and Nobody Was Looking
Retired cyclist Tom Dumoulin, the 2017 Giro d'Italia winner, ran 2:27:12 at the 2026 TCS NYC Marathon on his second ever attempt at 26.2 miles. He improved his debut by 2:09 on a harder course.