Marcelo splits his class in half based on weight; students above 170 lbs, and those below: 14 pairs are active on the mat while the remaining wait alongside the wall in line until the full round (30 sec + 1 min) has expired and the queue moves forward. When a student takes his turn, they will have only 30 seconds to pull guard against his or her partner, and one full minute afterward to continue training. At the expiration of the round, the passer leaves to join the end of the line while the puller will now take the role of top position for the next student from the line to pull guard in the next round.