Workout Library
Challenging workouts designed to push your limits. From beginner-friendly to elite-level.
Challenge workouts and benchmark tests
These are the Impossible Fitness challenge workouts: single sessions hard enough to measure yourself against and worth repeating every few months to see how far you've come. Some are classic CrossFit benchmarks, like Murph, Cindy and Chelsea. Others are well-known tests of grit, like David Goggins' 4x4x48, the 300 workout, Bring Sally Up and the 100 burpee challenge.
Each workout page explains exactly what to do, how to scale it if you're newer to training, and what a good time or score looks like, so you have a benchmark to beat. Pick one that matches where you are today, log your result, and come back to it after a training block.
If you want more structure, browse the full WOD library, including the Girls and Hero WODs, or follow a guided program in the Impossible Fitness app. New to a movement? Learn it first in the movement library.
CrossFit Benchmark WODs
Hero WODs honoring fallen heroes, and The Girls, CrossFit's original benchmarks
Challenges
Test your limits with these legendary challenges
Other Challenge Workouts
More ways to push your limits
Track Your Workouts
Log your times, track your progress, and follow structured training programs in the Impossible Fitness app.