Scott Rosenfield

Author's Bio

Scott Rosenfield (@ScottRosenfield) is a Level 2 USA Cycling Coach and Outside's Online Editor.

Legal Ways to Dope: Beta-Alanine

Beta-Alanine is a naturally occurring beta amino acid that has pronounced effect on high-intensity performance.

5 Legal Ways to Dope

Need to gain an edge? These five performance enhancers are safe and won't get you popped.

Legal Ways to Dope: HMB

Bodybuilders have been using HMB for years, but it's just now starting to break into the endurance community.

WADA to Lengthen Suspensions

The World Anti-Doping Agency has proposed mandatory four-year sentencing for first-time "real cheats." Under the new language, athletes who use anabolic steroids, human growth hormone, masking... Read More

Heat Batters Tour of California

Three riders are out of the Amgen Tour of California after missing the time cut on the day's first stage. Temperatures reached well over 90 degrees with readings on the pavement surpassing 100... Read More

First Chinese Rider Out of Giro

The first Chinese rider to enter the Giro d'Italia, Ji Cheng, has withdrawn ahead of the sixth stage because of a fever. Team physician Edwin Achterberg told the Associated Press that Ji felt very... Read More

Froome to Lead Team Sky at the Tour

Team Sky have confirmed that Chris Froome will lead the team's title defense at the Tour de France ahead of defending champion Sir Bradley Wiggins. After Froome's early season wins at the Tour of... Read More

Wildfire Burns Toward Malibu

A 10,000-acre blaze that started Thursday morning threatens 4,000 homes as it moves toward Malibu, California. More than 800 residents were told to evacuate as officials closed an 11-mile-long... Read More

NYC Bike Share Threatened

New York City's bike share program is sparking protests among residents. The bike share program is set to launch this month with 330 docking stations and 6,000 bikes in Brooklyn and... Read More