The chipper format is a classic CrossFit structure. You have a large number of tasks that you complete in order. They are designed so that as you fatigue in one task, you switch up the demands and keep going. There is a cumulative effect, of course, but the variety allows for incredible metabolic demands.
The variety also becomes a great equalizer. Everyone has strengths and weaknesses, and when the workout has 10 elements, both are likely to be featured.
– CrossFit Journal, 2009 Games, Part 19
15 Cleans (95/65 lbs)
30 Box Jumps (24/20″)
15 Thrusters (95/65 lbs)
30 KB Swings (55/35 lbs)
15 Man on Fire Burpees (aka Rolling Burpees)