Field Lacrosse in the Lower Mainland is played from September to April, with the majority of games played on Sundays. It is played on natural grass or “field turf” fields 110 yards long by 60 yards wide, with weekday practices. Unlike indoor (“box”) lacrosse, there are 10 players per side: a goalkeeper, three defenders (or big-sticks, because of their use of longer 5′ sticks), three midfielders (or middies), and three attackers (or “attacks”). The defense must always have four players on their side of center; usually the goalie and three defenders and the attack must always have three players on the opposite side of center. As in box lacrosse, the intent is to score a goal into a net (6 wide x 6 tall x 7 deep), line changes occur on the fly and a number of the infractions (called fouls) are similar to the penalties in box lacrosse. Typically, evaluations start in late August/early September, with players then divided up into tiers based on calibre of play: Tier I (equivalent of A box lacrosse), and Tier II (equivalent of B/C). Each calibre competes for the League Championship, with eligible Tier I & Tier II teams going on to compete in the Provincial Championships. Players must be properly registered and have played in at least 50% of league games to be eligible for the Provincial Championships.