The riseball is a pitch that's gonna spin backward and has a tendency to rise up through the
strike zone.

This would be my riseball grip, and you want to put your middle finger on the top seam, your
ring finger on the bottom seam, tuck your index finger, and then your thumb is typically opposite
of your middle finger.

The spin is gonna be underneath, so it spins backward. It has basically the same effect as an
airplane, so that it's going to
cause a decrease in pressure underneath the seams and cause the pitch
to actually rise up through the zone."