Lead Responsible for placing the mat if your team wins the end, delivering the jack and the first bowl of the match. After the end has been played the losing lead clears the bowls. The lead stands back when the score is being decided.
Two They are responsible for changing the scoreboard in triples. They measure and score in triples.
Three Usually a more experienced player. They advise the skip of the state of play. They measure and score in rinks.
Skip This is always an experienced player. Their bowls will decide the outcome of the end. During play they will decide tactics such as jack length and where to deliver the bowls.