The REPEAT statement defines the start of the loop. The UNTIL statement tests the condition and declares the end of the statement scope. Because the condition is tested at the end, the code within ...

The until statement tests the condition. Because the condition is tested at the end, the code within the loop is always executed at least once, even if the result of the test is FALSE.

In this video, basketball star Chris Bosh explains the difference between a Repeat Until command and a Repeat Loop command.