- Weekend One-Up: 100 Brutal-Burpees Burpees, enough said. This week's one-up is 100 repetitions of the most taxing bodyweight exercise in fitness.
- 8 Alternative Ways to Get Muddy Ready to tackle something different? Presenting: America's best mud runs you’ve never tried.
- Overnight Expert: How To Master the Tennis Serve Use these tips from French Open winner Murphy Jensen to ace the most important move on the court.
- MF's Adventure Race Guide Dominate any obstacle course or adventure race with our comprehensive expert guide.