Last Stone Draw (LSD) and Draw Shot Challenge (DSC)

Most championship events decide who gets the pick of last rock (the hammer) with a last stone draw (LSD). At the end of each team's practice period, two different players throw draw shots - one clockwise and one counter-clockwise. An official measures the distance of each rock to the pin and adds the radius of the rock of 14.2 cm. If the rock covers the pin, two measurements from the edge of the four-foot circle and a formula determine the distance. If the rock misses the house, the measurement is 199.6 cm. The sum of the two LSDs for that end determine who gets the hammer. If there is a tie, the lower LSD of all four shots - two by each team - gets the hammer. The LSD rotates among the players so that at the end of the tournament, the number of clockwise (cw) and counterclockwise (ccw) throws are equal amount the players.

The average LSD for a team is its Draw Shot Challenge (DSC). When computing the average, the highest LSD - or highest two if there are eleven or more LSDs - is discarded before computing the average.

Other factors being equal, this can determine seeding within playoffs. For example, if there were three teams tied for first place, the two teams with the highest DSCs would play, then the winner would play the team with the lowest DSC.