The key to any great running playlist isn’t style. It’s tempo. Mixing tracks from across the genre spectrum (indie rock, drum ’n’ bass, punk, dance-pop, whatever), here’s a high-intensity set geared toward runners looking to challenge themselves—music to drive you even when you feel like you’re flagging. Breathe deep and stay with the beat. Our editors update picks here regularly, so if you hear something you like, add it to your library.