In LAVA Issue 7, August/September 2011 (subscribe now!), Mark Allen’s “Competitive Edge” column covers how to incorporate race intensity into a regular old workout. The concept, called racing at or in training, is speed work done within a real-world framework. It requires doing hard, fast workouts en masse, and being surrounded by others who are going to do their best to drop you like a hot potato. Check out his tips in this short video.