28 SAILING THE COURSE
28.1 A boat shall start, leave each mark on the required side in the correct order, and finish, so that a string representing her wake after starting and until finishing would when drawn taut pass each mark on the required side and touch each roundingmark. She may correct any errors to comply with this rule. After finishing she need not cross the finishing line completely.
28.2 A boat may leave on either side a mark that does not begin, bound or end the leg she is on. However, she shall leave a starting mark on the required side when she is approaching the starting line from its pre-start side to start.