The first player on a team to deliver a pair of stones for his/her team in each end.
The curler who delivers the second pair of stones for hi/her team in each end.
THIRD, VICE-SKIP OR MATE
The third player on a team to throw two stones in each end.
Generally this player acts as the skip when the skip is delivering his/her stones and assists with shot selection decisions.
The player who determines the strategy, and directs play for the team.
The skip generally delivers the last pair of stones for his/her team in each end.