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A practical guide to hydration for several common trail racing scenarios along with input to adapt your hydration strategy to the conditions.

Want to steal treadmill secrets from one of the fastest 100-mile minds in the U.S.?

Learn the science behind perfecting your taper with help from CTS coach, Jim Rutberg.

In the peak of the Phoenix summer heat, an unsanctioned, unpromoted, unknown fatass race takes place. Despite sky high temperatures, runners leave the climate controlled comfort of their homes to enter the Circle of Hell. UltraSignup and LMNT sent Annemarie to check it out.

How do you take care of your feet before they start showing signs of trouble?

Learn about the basics of effective heat training from the experts at CTS.

You’ve already spent your money and time on training, so let’s make it to the finish line, eh?

Carrie Meng is chasing a Western States silver buckle—training for 18,000 feet of vert from pancake-flat Florida. See how she’s getting race-ready as a flatlander!

A Runner's Guide to Smart Hydration

Isometric strength training builds muscle, strengthens and stiffens tendons, and helps prevent injury—making it a powerful, low-skill tool for ultrarunners to train smarter.