The serve
Serve: what good form looks like, and the 8 faults you can see on your own video
What good form looks like
The serve is the only shot nobody can rush you on, which makes it the one shot where inconsistency is entirely your own. Good form is built on a staggered athletic base: the same ball release every time, a small coil, then weight moving from your back foot to your front while your hips and shoulders turn through the ball. Contact happens below your waist and out in front, and the swing runs low to high like a pendulum from the shoulder. You finish high and balanced behind the line, ready for the third shot.
The fundamentals
- Staggered stance, feet about shoulder width, knees soft, weight on the balls of your feet
- The same ball release every serve: same height, same spot, out in front on your paddle side
- Coil your trunk, then turn your hips and shoulders through the ball
- Weight moves back foot to front foot, back heel lifting at or just before contact
- Contact below your waist and out in front, paddle head below your wrist
- Swing from the shoulder, low to high, and finish high and balanced behind the line
The camera angle that shows the most
Film this shot from the side. Of the faults below, most reveal themselves in profile: weight transfer, swing path, contact position and balance are all things you see from the side and miss from anywhere else. Each fault below is tagged with the angle that reveals it, so you know what a single clip can and cannot show.
The 8 common faults
Each fault is named by multiple independent coaching sources, tagged for whether it shows up in your body or in the paddle, and mapped to the camera angle that reveals it. Green means the skeleton can see it. Read how to spot it, the fix, and one drill.
No power base
Visible in the skeletonFilm from the sideSpot it
Your feet are close together or parallel to the baseline, you take a stabilizing step after contact, and your depth changes from serve to serve.
The fix
Stagger your feet about shoulder width. Front foot angled roughly 45 degrees toward your target, back foot roughly parallel to the baseline, knees soft, weight on the balls of your feet.
Drill it
Twenty shadow serves at about a third pace, checking your foot placement before each one. Then twenty live serves where you are not allowed to move your feet after contact.
Arm-only serve
Visible in the skeletonFilm from the frontSpot it
Your shoulders stay square to the net the whole way through and only your arm moves. The serve feels like hard work and the pace is different every time.
The fix
Turn your shoulders away as you release the ball, then let your hips lead and your shoulders follow. Finish with your belly button pointing at your target.
Drill it
Fifteen reps with your arms crossed on your chest and no paddle, just rotating through the motion. Then twenty serves watching only where your belly button finishes.
No weight transfer
Visible in the skeletonFilm from the sideSpot it
Your weight stays on your back foot or falls backward at the finish. Your back heel never comes off the ground and you end up leaning away from the court.
The fix
Load into your back leg as you release the ball, then move forward through contact so your back heel lifts as you hit. Finish on your front foot.
Drill it
Twenty serves where your back heel has to visibly lift at contact. Then ten where you take one controlled step forward after the finish, without touching the line.
Inconsistent ball release
Visible in the skeletonFilm from the sideSpot it
Your contact point moves around. Some serves feel cramped, others feel like a stretch, and depth is a guess even when the swing felt the same.
The fix
Use the same arm position, the same height and the same spot out in front on your paddle side, every serve. Extend your arm and let the ball fall instead of tossing it.
Drill it
Twenty releases with no paddle onto a towel placed at your ideal contact spot, until it lands on the towel every time. Then twenty serves off that release.
Cramped contact
Visible in the skeletonFilm from the sideSpot it
Your elbow is tucked against your ribs at contact and the ball has been released on top of you. The swing feels jammed and the serve has no depth.
The fix
Release the ball far enough in front that you have to reach out to it, and let your arm extend through contact.
Drill it
Put a cone about one paddle length in front of your front foot and release the ball over it. Twenty serves.
Backswing too big
Visible in the skeletonFilm from the sideSpot it
Your paddle travels well behind your body, your timing changes serve to serve, and the ball either sails long or drops into the net.
The fix
Shorten the takeaway so the paddle stays inside your back hip, and let your rotation supply the pace. Slow going back, faster coming forward.
Drill it
Twenty serves counting it out: one going back, two coming through. The paddle never passes your back hip.
Contact above your waist
Visible in the skeletonFilm from the sideSpot it
You get called for it, or the serve travels flat and downward instead of arcing up. Usually you are standing bolt upright when it happens.
The fix
Bend your knees to lower your contact zone, release the ball lower, and swing up so contact happens below your waist with the paddle head below your wrist.
Drill it
Twenty serves with a partner watching contact height and calling each one legal or not. Add knee bend until every one is clean.
Cut-off finish
Visible in the skeletonFilm from the sideSpot it
Your swing stops at contact, or you drift over the baseline and have to scramble back for the third shot.
The fix
Finish low to high, up toward your opposite shoulder, and land balanced behind the baseline before you move anywhere.
Drill it
Twenty serves holding the finish for two full seconds. Then ten where you only step forward once the finish is complete.
Reading about it is not the same as seeing it
You can know every fault on this page and still not know which ones are yours. That is the whole problem with technique: it is invisible from inside your own swing. Dinklix draws a pose skeleton on a ten-second clip of your serve and names which of these your body is actually doing, in order, with one thing to start with.