The minimum number of holes needed to be completed to in order for a match to count in the case of interrupted play due to weather conditions is 5. Five holes need to be completed by all groups. 
To score a rain shortened match, determine the team score by using only the scores for holes that were completed by ALL players. (For example if the last group only completed 6 holes, you only use the scores through 6 holes for all players, dropping the 2 highest scores players scores. In other words it becomes a 6 hole match and any scores from holes 7-9 are eliminated.)

When 5 holes have not been completed due to interrupted weather conditions the result will fall under one of the 2 options listed.

Option 1: Wait out the weather conditions and resume play. In this case players are to mark their ball so as to be able to identify their location when continuing play. If the marked position is not present upon continued play the group shall agree to last ball position. The time allowed to wait out weather conditions will be 1 hour.

Option 2: If 5 holes have not been played and play does not resume on that day, the match shall be considered a rainout, and should be rescheduled.