The scratch spin is an upright spin where the free leg is crossed over the skating knee and then pushed down towards the ice. As the arms are pulled in towards the chest, a blur effect can be achieved if the spin is done fast. It is the most popular spin among figure skaters.
The scratch spin is sometimes called a cross-foot spin. When skaters are asked to do a one-foot upright spin, they usually do a scratch spin. This spin is sometimes called a blur spin.