A curious competition held in the United States, where each team of two people, must cut a log in the shortest possible time, a few seconds. for this, the saw must be portable, although they give them the freedom to personalize it, in terms of power and size, the only thing unchangeable is that it has to be chain saw. for this reason they see in the video some monstrous and too powerful engines. The cuts are made on a single trunk, very old, mature and hard. in order to be a fair contest with equal conditions for all. It is NOT that they are cutting down one tree for each contestant. It is a pine trunk, a very common wood in the United States and an extremely fast growth. They are giant crops for commercial use. subject to all environmental legislation, stricter and with fines fines and jail for offenders, which is not seen in other countries of the world.