Welcome to TwentyOneFifteenNine.com. If you’re in the CrossFit world, you’ll know what those numbers represent – the number of reps required for many CrossFit workouts. I started this website to provide resources on how to improve performance in CrossFit.
This website covers topics on workout tips, nutrition and developing a strong mindset that will help you become fitter, faster and stronger through CrossFit. I’ve also put together my research on finding the best CrossFit shoes and equipment.
Enjoy this website, and we hope you PR (personal record) each WOD that requires twenty one, fifteen, and nine reps.