Arlington Country Day School

ACDS also joined the Sunshine Independent Athletic Association (SIAA) in 2010 to allow for more flexibility than the FHSAA could offer.

Its most notable is the boys' varsity basketball team, which has been called "one of the most celebrated programs in the country".

[11] ACDS repeated the championship in 2006, with a convincing 73–37 win over North Palm Beach Benjamin in a game played at the Lakeland Center.

In March 2008, a four-peat was accomplished with ACDS again winning the state Class 2A title, beating Weston Sagemont, 54–53.

[17] In 2000 and 2001, the ACDS baseball team won back-to-back Class 1A titles, winning their second title on May 15, 2001, by defeating Archbishop Carroll High School of Miami by a final score of 10–8 in a game played at Legends Field in Tampa, Florida.

[18] On May 18, 2006, the baseball team won their third state title in six years, with a 4–2 victory over Lakeland Santa Fe Catholic.