Maine native Hugh Freund and his U.S. Paralympic teammates continued their Sonar Sailing competition in Rio on Tuesday.
Freund, along with Rick Doerr and Brad Kendall, finished ninth among 14 countries in the lone race contested on Tuesday.
The U.S. trio, which was sixth after the opening day of competition, slipped to seventh place.
The Americans sit seven points out of a spot on the podium behind third-place Greece while Canada leads the competition, followed by Australia. The Canadians sailed to the top finish on Tuesday, with Norway finishing second and Greece third.
The 28-year-old Freund, a native of South Freeport, had his right leg amputated below the knee because of complications from cancer nine years ago.
The competition resumes on Wednesday.