One or more devices, methods, and systems implementing one or more techniques for use of one or more sport balls and/or evaluations of handling one or more sport balls are disclosed. One or more techniques may include a sport ball having one or more pressure sensors configured to generate one or more force values between the one or more pressure sensors and a sport ball user upon use/engagement of the sport ball with the user. One or more techniques may include a processor configured to determine at least one handling value, perhaps based upon the one or more force values.

A training ball includes a resilient shell having an outer surface and an inner surface defining an interior chamber therein. Weighted filler material is disposed within the chamber. A valve stem extends radially inwardly from the shell inner surface and into the interior chamber. An opening along the valve stem extending from the interior chamber to the outer surface of the shell, with a valve disposed in the opening. A transition between the valve stem and an inner surface of the outer shell is curved, tapered, or otherwise graduated to reduce stress at the transition such that a widest portion of the transition is at least twice as wide as a narrowest portion of the valve stem. The transition can be curved with a fillet radius of between about 5-15% of the outer diameter of the ball, and/or between about 4-10 mm.

A yoga paddleboard may include a yoga board body having a hole extending therethrough. The hole may be formed at the approximate lateral and longitudinal center of the paddleboard. The hole may be sized and configured to support a yoga ball pressed in the hole to establish an interfacing friction connection therebetween. The yoga ball may be used to perform yoga exercises while floating on the paddleboard. Alternative embodiments may include yoga ball supports configured to support yoga balls of different sizes and/or multiple yoga balls for use with the paddleboard.

The objective of the present invention is to provide a stability ball case configured to store a stability ball therein and, especially, having a weight thereon to prevent the stored stability ball from rolling, thereby avoiding a safety accident that may happen when the stability ball rolls and drops, as well as storing the stability ball at a desired place in a safe and convenient manner. Particularly, another objective of the present invention is to provide a stability ball case configured such that a weight can be attached to and detached from a body constituting the case, whereby the weight can be separated from the body when the case is washed, or when the stability ball is carried, thereby enabling the stability ball case to be safely used and stored, as well as being conveniently used.

A game ball supports electronics. In one implementation, the electronics sense motion of the game ball and are encapsulated by potting compound which forms an encapsulating body sized and shaped to fit within a cavity of the game ball. In one implementation, a game ball comprises an inflatable body which supports the electronics, wherein an electrical conductive line is electrically connected to electronics extends along a surface of the inflatable body at least 60 degrees about the inflatable body.

A basketball includes a bladder, electronics within the bladder proximate an outer portion of the bladder, windings about the bladder, and a molded elastomeric layer about the bladder and extending over the electronics.

One or more devices, methods, and systems implementing one or more techniques for use of one or more sport balls and/or evaluations of handling one or more sport balls are disclosed. One or more techniques may include a sport ball having one or more pressure sensors configured to generate one or more force values between the one or more pressure sensors and a sport ball user upon use/engagement of the sport ball with the user. One or more techniques may include a processor configured to determine at least one handling value, perhaps based upon the one or more force values.

A practice ball with an off-axis weight distribution allows sportspeople to practice their ball catching, passing and other skills using a ball that flies through the air with a wobbly trajectory.

This ball for ball game includes: a spherical skin portion formed to be transparent at least partially so that inside of an internal space is visible from outside; a tubular retention portion provided in the internal space and extending so as to connect two poles of the skin portion, the tubular retention portion having a surrounded space therein; and a retained object retained in a visible state between the two poles in the surrounded space. The tubular retention portion has a shape helically twisted between the two poles. The tubular retention portion is twisted with an angle not less than 135? and not greater than 270? between the two poles.

A game ball configured for organized, competitive play and having a total mass. The game ball includes an inflatable bladder, a layer of reinforcing material surrounding the bladder, an elastomeric layer surrounding the bladder, and a plurality of cover panels positioned over the layer of reinforcing material and the elastomeric layer. The bladder has a bladder mass that is greater than 25 percent of the total mass. The elastomeric layer and the layer of reinforcing material have a collective mass that is less than 55 percent of the total mass. The game ball is formed without one or more of electronics, batteries and charging coils.