The Windmill Pitching Motion Explained
How the fastpitch windmill delivery works, from the stance to the follow-through, what the rules allow, how the pitches spin, and general arm-care principles for pitchers, parents and coaches.
The windmill is the delivery used by fastpitch softball pitchers. The arm swings in a full vertical circle, from the hip up past the ear and back down to the hip, and the ball is released with an underhand motion as the arm passes the body on the way down. Done well, it combines the whole body: legs, hips, trunk and arm all contribute, and the wrist adds a snap at the end that gives the ball its spin.
It looks nothing like an overhand baseball throw, and it is often described as a natural, low-stress motion. That description is only partly true. The windmill is easier on some parts of the body and demanding on others, and pitchers throw a great deal. This article explains the delivery phase by phase, shows how the legal pitch is defined, covers the main pitches and their grips, does the arithmetic on why a softball pitch is so hard to hit, and sets out general principles for caring for the arm. It is not medical advice; for anything about an individual pitcher's body, a doctor or a qualified pitching coach is the right source.
What the rules require of the pitch
Fastpitch rules differ in detail between organizations and levels, so the rulebook of your league or governing body is the final word. The essentials are common to most of them, including the high school and college codes.
- The pitcher must start with her pivot foot in contact with the pitcher's plate, and the other foot on or behind it, and must come to a brief stop with the ball in both hands, in front of the body, before beginning the pitch.
- The pitch must be delivered with an underhand motion. At the release, the ball must be released below the hip, and the wrist must not be farther from the body than the elbow.
- The pitcher may take one step forward, in the direction of home plate, as part of the delivery.
- The pitcher may not stop and restart the motion once it has begun, and may not use a quick-return pitch.
The pitching distance, from the front of the pitcher's plate to the back point of home plate, is 43 feet in college and high school play. Younger divisions use shorter distances, and the figures vary by organization, so check your league's rules. The bases are 60 feet apart in fastpitch.
Slowpitch uses a different delivery entirely: a high arc is required, and the pitch is a gentle lob. For the differences between the two codes, see fastpitch versus slowpitch softball, and for a primer on the game itself, see how fastpitch softball works.
The five phases of the delivery
Coaches divide the windmill into phases, and different coaches use different names. A simple model has five.
| Phase | What happens | What to watch for |
|---|---|---|
| 1. Set | Feet on the plate, ball in both hands, pause | Balanced stance, eyes on the target |
| 2. Drive and swing begins | Weight shifts back, then the pitcher pushes off the plate; the arm starts to swing up | Pushing toward home, not up |
| 3. Circle | The arm rises, passes the top, and starts down | Smooth, relaxed arm; the glove arm stays active |
| 4. Stride and release | The stride foot lands, the hips turn, the arm passes the hip and the wrist snaps | Landing with the foot pointed at the target; release at the hip |
| 5. Finish | The arm and body decelerate; the pitcher is ready to field | Staying balanced and square to the batter |
Phase 1: set. The pitcher stands with her pivot foot on the plate, takes the sign, and pauses with the ball in both hands. The pause is required by the rules, but it is also where good pitchers settle their balance and pick a target. A rushed set tends to cause a rushed delivery.
Phase 2: drive. The pitcher shifts weight backward slightly and then drives off the plate toward home. The push comes from the legs and hips; it is the engine of the pitch. As the body starts forward, the throwing arm begins to rise.
Phase 3: the circle. The arm swings up in front of the body, past the top, and back down. In the best deliveries, the arm stays relaxed and its speed builds through the bottom of the circle rather than at the top. The glove-side arm is not idle: it pulls the front side of the body closed at the landing and helps rotate the hips.
Phase 4: stride and release. The stride foot lands, usually pointing toward home plate or slightly closed, and the hips and trunk rotate. The throwing arm passes the hip on the way down, and the wrist snaps at the moment of release. The snap, often described as a quick flick of the wrist and fingers, puts spin on the ball and contributes to its final speed and movement.
Phase 5: the finish. After release the arm continues forward and up, and the pitcher decelerates. A good finish leaves the pitcher balanced and facing the batter, because she is only 43 feet away and must be ready to field a ball hit back at her.
The legs and hips run the show
A common mistake among beginners is to think the pitch comes from the arm. In practice, most of a good pitch's energy comes from the lower half. A strong push off the plate, a hip turn timed with the arm's pass through the bottom of the circle, and a stable stride leg all feed the arm.
Think of the body as a chain. The legs start the motion, the hips and trunk pass it on, the shoulder and elbow carry it, and the wrist and fingers deliver it. Each link has to be strong and timed with the next one. A pitcher who gets her legs and trunk into the delivery asks less of her shoulder than one who muscles the ball with the arm alone, and she can throw harder as a result. This is why most pitching coaches emphasize lower-body strength and balance as much as arm drills, and why leg and core conditioning are staples of pitching programs.
The timing of the hip turn is among the hardest parts to teach. If the hips open too early, the arm has to catch up and the pitch loses power and control. If they open too late, the arm is ahead of the body and the pitcher loses command. Video of a pitcher's delivery, viewed at slow speed, is the most useful tool for checking this.
The wrist snap, grips and the main pitches
The windmill produces a family of pitches that differ by grip, wrist action and the direction of the spin. The basic ones are these.
| Pitch | How it is thrown | What the batter sees |
|---|---|---|
| Fastball | Fingers across the seams, wrist snaps straight through the ball | A straight, fast pitch |
| Changeup | Held with a grip that cuts speed; same arm speed as the fastball | A pitch that arrives later than expected |
| Drop | A snap that puts forward spin on the ball | A pitch that falls near the plate |
| Rise | A snap that puts backspin on the ball | A pitch that appears to climb |
| Curve | A snap across the side of the ball | A pitch that bends away from one side of the plate |
| Screw | The mirror image of the curve | A pitch that bends the other way |
Several details matter. The changeup works only if the arm speed looks the same as for the fastball; if the pitcher slows down the arm, the batter reads the pitch. The rise ball is generally understood not to climb against gravity but to drop less than the batter expects, a result of backspin. And the grip that gives a pitcher the most feel is the one that suits her hand, which is why coaches encourage experimentation and tell young pitchers to master the fastball and changeup before adding a spin pitch.
A good pitcher is not necessarily the one with the most pitches. The best way to be effective is to command two or three well, change speeds and locate, rather than try to master all of them.
Why a softball pitch is so hard to hit
The pitching distance in softball is 43 feet, against 60 feet 6 inches in baseball. The same pitch speed from a shorter distance arrives sooner. Dividing the distances gives 43 divided by 60.5, or about 0.71, so a pitch of any given speed takes roughly 71 percent as long to reach the plate in softball as in baseball. The exact figure shifts a little with the release point and where contact is made, but the principle holds: the batter has less time to decide and less time to swing.
On top of that, the softball is larger than a baseball and is released low with spin, so the pitch can drop, rise or curve on its way in. A hitter has to identify the pitch and its location in a fraction of a second. That is why hitters talk about the importance of reading the release point, the spin and the pitcher's arm speed.
The combination of short distance, spin and movement helps explain why pitching is so influential in the sport, and why the best college programs are so often built around their pitchers. To see the sport's national showcase, read the Women's College World Series; to see how teams get there, read NCAA softball tournament format and selection.
Arm care: general principles
This section gives general guidance only. It is not medical advice, and no article can tell you whether a specific pitcher is ready to throw. The governing bodies of the sport publish guidelines, and a doctor or a certified athletic trainer should be consulted about pain or injury.
The idea that the windmill is gentle on the arm is a myth. Biomechanical research on windmill pitching has found that the shoulder and elbow absorb substantial forces during the delivery, comparable in some measures to those in overhand throwing, and the repetition adds up. Fastpitch pitchers can throw on many days a week, in practice, lessons and games, and in tournaments they may be asked to pitch several games in a day. The risk is cumulative, not dramatic.
The following principles are widely recommended by coaches and trainers.
- Warm up properly. A gradual warm-up that raises body temperature and takes the arm through its range of motion comes before throwing hard.
- Build up workload gradually. Avoid large jumps in the amount of throwing from one week or one season to the next.
- Rest. Pitchers need days off from pitching and a break between seasons. Rest is part of training, not an interruption.
- Do not pitch through pain. Pain in the shoulder, elbow, wrist or back is a signal to stop and have it checked.
- Train the whole body. Leg, hip, core and shoulder-stability work, ideally supervised by a qualified coach or trainer, helps a pitcher carry the load.
- Watch the total. Count the pitches in practice, lessons and games together. A pitcher who throws a full game on Saturday and then a bullpen session on Sunday has had a big weekend.
- Use sound mechanics. A smooth, balanced delivery spreads the load across the body. Poor mechanics put more stress on the arm.
- Play other sports and positions. Variety helps young players develop and gives the pitching arm a break.
The NCAA publishes the rules for college play at ncaa.com, USA Softball and other governing bodies publish rules and safety information for their levels, and many leagues set limits on innings or days of pitching for young players. If your league has a rule, follow it, and if it has none, ask a doctor or an experienced coach what a sensible limit looks like for a particular pitcher.
Teaching and learning the windmill
Young pitchers learn best in small steps. The usual progression starts with the arm circle alone, with no stride, so that the motion is smooth, then adds the stride and hip turn, then the wrist snap, and finally the full delivery. Many coaches use drills that isolate one phase at a time: a snap drill at close range, a stride drill without the ball, a circle drill with a towel.
Accuracy before speed is the rule. A young pitcher who throws strikes with a modest pitch will be more effective than one who throws hard and cannot find the plate, and the habit of controlling the delivery protects the arm. Video, slow-motion review and a coach's feedback are all valuable.
Common faults to look for include:
- Opening up too early, where the hips and shoulders rotate before the arm reaches the release point.
- Leaning back, which sends the ball high and puts strain on the lower back.
- Stride too long or too short, which disrupts timing and balance.
- Stiff arm, where the circle is rigid instead of loose.
- A snap that comes too soon, so that the ball is released above the hip.
The finish matters for safety as well as for performance. Because the pitcher is close to the batter, she needs to end the pitch in a ready position. Many leagues require or recommend a face guard for pitchers, and your league's rules or a qualified coach can tell you what protective equipment fits your level.
Common questions
Is the windmill motion bad for the shoulder? It is not harmless. Research has found that the shoulder and elbow carry substantial loads, so workload and recovery matter. Individual advice belongs to a doctor.
How far is the pitching distance? Forty-three feet in college and high school play. Younger divisions often use shorter distances.
What does "release below the hip" mean? At the point of release, the ball must come out below the pitcher's hip, and the wrist must not be farther from the body than the elbow.
Which pitch should a young pitcher learn first? The fastball, then the changeup. Spin pitches usually come later, and the order is a decision for a qualified coach.
Can a pitcher pitch every day? Rules vary by league, and a doctor or coach should set limits for a specific pitcher. Most guidance stresses rest days and gradual workload.
Where to go next
The windmill is the central skill of a sport with its own history and its own showpiece events. To see the sport on its biggest stage, read about softball at the Olympics, visit the site's softball pages and the softball topic page, and for a comparison with baseball's postseason, see how the MLB postseason works.