More details on the Race To Mackinac.
So far nearly 30 sailors called off their voyage because of strong winds and waves.
The Coast Guard also rescued five people in two separate cases.
They say one person fell overboard during the race and was rescued by a good Samaritan who was also competing.
The Coast Guard also rescued four other people when their boat capsized.
Everyone is in good condition. The first boat finished the race earlier on Sunday.
Overall about 300 boats are competing in the race from Chicago to Mackinac.