(Updated September 2026)

Teams are responsible to sign up the Last Stone Draw throwers (not applicable to Mixed Doubles) a minimum of 45:00 minutes prior to draw time. The Umpire team will provide a sign-up table and the forms where teams can fill in their throwers. Teams MUST have the person(s) recorded as to who threw the Last Stone Draws prior to the beginning of the game.  Refusal of a team to provide the person(s) who threw the last stone draws will result in a distance of 199.6 cm being recorded.

For games requiring Last Stone Draws (LSD), at the conclusion of each team’s pre-game practice, two stones will be delivered to the tee at the home end, by different players – the first stone with a clockwise and the second with a counterclockwise rotation. For mixed doubles, both players will throw the same turn (first practice will throw clockwise, the second practice will throw counterclockwise).   

Teams are given a maximum of 60 seconds to deliver each LSD stone. If the stone is delivered before the official announcement, has not reached the tee line at the delivery end within 60 seconds (observed by an umpire), or is delivered with the wrong rotation, it will be recorded as maximum distance (1.996 m).

A player (alternate) that delivers or sweeps an LSD stone does not have to play in that game. Any of the five players can deliver and/or sweep or hold the brush for any LSD stone(s) as long as there is a maximum of 4 players on the ice during the LSDs. Sweeping is allowed (except in wheelchair curling). The brush pads that will be used during the game must also be used for sweeping an LSD stone. When an alternate just delivers or sweeps an LSD stone, they must use the brush pad of the player they replace during the LSD.

In Mixed Doubles both players must be on the ice, and in all other events a minimum of 3 players must be on the ice. If that is not the case, the LSD stone(s) would be recorded with the maximum distance.

In Wheelchair Curling: If a team has 4 players of one gender on the ice during the LSD(s), the LSD(s) result(s) will be recorded with the maximum distance.

The first stone will be measured and removed from play before the second stone is delivered. The distances recorded for each stone will be added together to give the team its LSD total for that game. The team with the lesser LSD total will have the choice of delivering the first or second stone in the first end of that game. If the LSD totals for both teams are the same, the individual LSD stones are compared, and the best non-equal LSD has the choice of delivering first or second stone in the first end. When both teams have the exact same individual LSD stone distances, a coin toss will be used to determine that choice. 

LSD distances will be measured and recorded in the following manner:

All single measurements will be from the tee to the nearest part of the stone, but the LSD distances will be displayed in centimetres as the distance from the tee to the centre of the stone.

The official radius to be used is 142 mm or the radius determined by the umpire crew if the stones are a different radius.

To any result measured, the radius must be added. The distance for stones not in the house is 1.996 m.

Stones covering the tee will be measured from two locations (holes) at the edge of the 4-ft. circle. These two locations make a 90-degree angle with the centre hole and are 610 mm (2 ft.) from the centre hole.

The number of LSD stones, and the number of clockwise and counterclockwise deliveries for each player, will be determined at each competition depending upon the number of games in the round robin. Based on the Original Team Line-up form, the four players must fulfil the minimum number of LSD deliveries (number of clockwise and counterclockwise deliveries not applicable to Mixed Doubles). If there is a violation where the minimum requirements are not fulfilled, the appropriate LSD(s) will be recorded as 1.996 m. 

LSD stones delivered by the alternate can be combined at the end of the games that are considered in the calculation of the DSC with only one other player, so that this player fulfils the minimum required number of LSD stones.

Where a team starts a competition with a complete team but then, for any reason, a player cannot fulfil their minimum LSD requirements, the maximum of 1.996 m will be recorded for each of their missed LSD stones. 

Draw Shot Challenge

The Draw Shot Challenge (DSC) is the average distance of all the individual Last Stone Draw stones, which were delivered by a team during the round robin excluding the least favourable result(s) as detailed in (II) and (III) below.

      I.         The team with the lesser DSC receives the higher ranking. If the DSCs are equal, then the team with the best non-equal counting LSD receives the higher ranking. 

     II.         Where a total of 11 or fewer individual stones will be considered, the single least favourable result is automatically eliminated when calculating the average distance. Where more than 11 individual stones will be considered, the two least favourable results will be eliminated when calculating the average distance.

    III.         Where there is more than one group and these groups are of differing sizes, to ensure the DSC is calculated in the same way, only the LSDs from the first ‘equal number’ of games will be used. Based on the Original Team Line-up form, the four players must fulfil the minimum number of LSD stones within the first ‘equal number’ of games.