CALL MR 27              

Rule 32.1(e) Abandoning After the Start
Rule 62 Redress
Rule C9.2 Requests for Redress—Official boat interfering with competing boat
Rule C9.3 Other Proceedings—following action or non-action by umpires

Question
Under what circumstances should a match in progress be abandoned?

Answer
After the preparatory signal a match should be abandoned only when the umpires and race committee are sure that a claim for redress would be upheld were the adversely affected boat to lose the match or for reasons of safety. It is then preferable to abandon the match immediately. The following are examples:

a) a late or incorrect recall signal.
b) serious interference with a competing boat by an umpire or other official boat.

During the preparatory period the match may also be postponed. A match should not be postponed or abandoned due to an incorrect umpire signal. In this case rule C9.3 applies.