Tennis Serve Basics: Grip, Toss and Contact
A practical guide to building a more repeatable tennis serve.

Use a continental grip
It supports pronation, spin and a more complete service motion.
Make the toss predictable
A repeatable toss reduces compensations later in the motion.
Reach up to contact
Good extension helps create height and margin over the net.
Let rhythm build speed
A smooth sequence usually produces more reliable pace than forcing the arm.
Practice targets
Serve training should include location, not only power.