If rain does not subside, the sanctioning body has several options. Typically, the race is considered "official" if at least one lap beyond the halfway point of the advertised distance has been completed (similar to baseball). If such is the case, the race is deemed complete, and a winner can be declared. In some cases, if the race has already gone beyond the halfway point (especially if it is very near the scheduled finish) when rain falls, and the weather forecast is for day-long rain, no attempt to complete the remainder of the race will be attempted. If a downpour occurs very near the end of the race, the officials, in fact, may use their authority to wave the checkered flag at that instant, and end the race immediately (such as during the 1975 Indianapolis 500). However, if the event is stopped any lap before the halfway point, the remainder of the event can be postponed to the following day (such as during the 1997 Indianapolis 500 and the 2020 Daytona 500).