“Finish” as defined in the Racing Rules of Sailing is, “A boat finishes when, after starting, any part of her hull crosses the finishing line from the course. However, she has not finished if after crossing the finishing line she
(a) takes a penalty under rule 44.2,
(b) corrects an error under rule 28.2 made at the line, or
(c) continues to sail the course.
Rule 44.2 is the rule about taking penalty turns and Rule 28.2 covers sailing the course correctly, also referred to as the “String Rule.”