Circle changeup

A circle change can also be used to provide movement like a two seam fastball but without the stress placed on the arm by a traditional screwball[citation needed].

Additional change in velocity can be achieved by dragging the foot that would normally follow through fully with a fastball delivery.

Simply using a slower arm motion is undesirable, as it may tip off the batter, and will invariably result in less movement on the pitch.

It is an effective pitch to throw early in the count to produce a groundball; it is not traditionally used to acquire a strikeout.

Former New York Mets closer John Franco was able to generate so much movement on his circle changeup that it mimicked a screwball.