A device for use with a paddle including a telescoping device coupled to a paddle at an end of the paddle and collapsible into the end of the paddle and the telescoping device having a picker on a first end of the telescoping device wherein the picker is configured to attach to an aperture in a ball.

A game assembly is configured to be used in a target throwing game. The game assembly has a target further comprising a three-dimensional polygon having twenty-six sides. A game surface is attached to at least one side on the three-dimensional polygon. A mounting bracket is attached to the target and to vertical surface joined to a ground surface. At least one ball has an attachment surface configured to detachably join to the game surface. Throwing the at least one ball at the game surface can score points for a user of the game assembly.

A game assembly is configured to be used in a target throwing game. The game assembly has a target further comprising a three-dimensional polygon having twenty-six sides. A game surface is attached to at least one side on the three-dimensional polygon. A mounting bracket is attached to the target and to vertical surface joined to a ground surface. At least one ball has an attachment surface configured to detachably join to the game surface. Throwing the at least one ball at the game surface can score points for a user of the game assembly.

Systems, methods, and computer-readable media are disclosed for autonomous tennis assistant systems having autonomous ball machines such as an autonomous and interactive tennis ball ejection robot. Example methods include determining, by a device, the position of a first player on a tennis court, determining a first target location for a first tennis ball to be ejected toward the first player, generating a trajectory for the first tennis ball to reach the first target location, and causing ejection of the first tennis ball from the tennis ball ejection robot along the generated trajectory toward the first target location. A base station may be used to provide image data for use by the tennis ball ejection robot from one or more additional vantage points.

System and method for launching a ball onto the ground of a playing field. The system includes an outlet chamber configured to receive the ball therein; an outlet conduit or frame configured to contain the outlet chamber and allow the same to move through the outlet conduit towards a second position on the ground; movement capability of the outlet chamber, connected to and configured to move the outlet chamber between at least the first position and the second position, where the outlet chamber includes an outlet mouth and launching means for launching the ball arranged in the outlet chamber. A field including the system is also described.

System and method for launching a ball onto the ground of a playing field. The system includes an outlet chamber configured to receive the ball therein; an outlet conduit or frame configured to contain the outlet chamber and allow the same to move through the outlet conduit towards a second position on the ground; movement capability of the outlet chamber, connected to and configured to move the outlet chamber between at least the first position and the second position, where the outlet chamber includes an outlet mouth and launching means for launching the ball arranged in the outlet chamber. A field including the system is also described.

Golf entertainment venues with a computing system configured to optically identify and track graphical images located on golf balls hit by players. The graphical image located on a golf ball can be associated with a player and the computing system can assign the player a score when that player's golf ball successfully arrives at a target area. In some embodiments, the graphical images can be printed on the golf balls using, for example, a single pass inkjet printing technique. In some embodiments, the computing system can be configured to sort golf balls based on optically identified graphical images.

A ball retriever assembly for retrieving and storing balls includes a hopper body defining a hollow storage space therein and at least one attachment configured for removable coupling to the hopper body. Each of the attachments includes a retrieval structure configured for unidirectional passage of one of the balls through the corresponding one of the attachments. A lid is configured for removable coupling to the hopper body as well as each of the attachments. The lid is adjustable between a ball retrieval configuration wherein the lid encloses an end of the hollow storage space and a ball removal configuration wherein the lid forms a stand for maintaining an upright and open configuration of the hopper body. The different attachments configured for removable coupling to the hopper body allow for the unidirectional passage of different ranges of outer ball diameters.

A ball retriever assembly for retrieving and storing balls includes a hopper body defining a hollow storage space therein and at least one attachment configured for removable coupling to the hopper body. Each of the attachments includes a retrieval structure configured for unidirectional passage of one of the balls through the corresponding one of the attachments. A lid is configured for removable coupling to the hopper body as well as each of the attachments. The lid is adjustable between a ball retrieval configuration wherein the lid encloses an end of the hollow storage space and a ball removal configuration wherein the lid forms a stand for maintaining an upright and open configuration of the hopper body. The different attachments configured for removable coupling to the hopper body allow for the unidirectional passage of different ranges of outer ball diameters.

A robotic collection system includes: a working robot configured to autonomously travel on a field to collect target objects on the field; and a management controller configured to manage a work schedule of the working robot. The management controller includes a processor. The processor obtains information about an amount of the target objects on the field, and changes an existing work schedule based on the information.