Curveballs don't curve so much as break (drop).
Many coaches are opposed to curves for any pitcher below the teen years, saying they require wrist and shoulder maturity. The problem is that too many curves are thrown like a 'door knob' slider. In other words - a safe, simple lock-wrist curve is not what kids learn on their own. Which is the strongest argument for having kids learn to throw a curve safely. (After all they may try anyway.) Still other instructors believe the screwball is safer for young arms. (See note at bottom.) So, first, ask yourself some questions...
Should you as a coach teach it?
Follow these criteria...
- Is the pitcher post-puberty?
- Are his parents aware of the possible risks?
- Do you feel qualified to teach him starting with a locked-wrist curve to minimize lateral strain on his forearm in the carpal tunnel?
- Will you stop him at the first physical indication of a possible problem - even a twinge, whether he admits to soreness or not?
Should you as a player try it?
Ask yourself the following...
- Has your voice dropped and do you show other signs of puberty?
- Are you parents aware of the risk and have you got their permission?
- Does your coach know about the locked-wrist curve and other curves; do you have confidence that he can teach you?
- Are you prepared to stop at the VERY FIRST SIGN of elbow or wrist problems?
Only if you can answer "yes" to ALL the appropriate questions above, are curveballs okay - but start slowly.
Note: This page slated for revision/expansion in 2007.
Descriptions and animations available to WebBall Team Players only.
Overhand Curve
Wrist is bent inward, elbow closer to ear (more overhand).

WebBall Team Players can read more and see a 3-D view of this grip.
Curve Variations
Experiments with arm action could take away control. I
Knuckle Curve

For those with 3D access (WebBall Team Players), this grip has been illustrated from both sides.
Screwball
Note: some pitching instructors think a
screwball is safer than a curve.

WebBall Team Players can read more about this grip. 3-D demonstrations coming soon.