An ultraviolet court-illumination system is used to light a playing court and any related equipment in a fluorescent manner. The system includes at least one playing court, a first plurality of ultraviolet (UV) court lights, a plurality of fluorescent game boundary-markers, and at least one fluorescent game fixture. The playing court is used for playing games or sports. The plurality of fluorescent game boundary-markers is superimposed onto the playing court and is used to delineate the boundaries of the playing court. The fluorescent game fixture is mounted onto the playing court and may be a net, a goal, or any other fixture used to play the sport. Each of the first plurality of UV court lights is peripherally positioned about the playing court and is used to illuminate the fluorescent game boundary-markers and the fluorescent game fixture. The first plurality of UV court lights is powered by a power source.

A portable pickleball training net applied in the pickleball sport is provided, including a bracket and a rebound net mounted on the bracket. The bracket includes a bending part, a supporting part, and connecting parts. The bending part and the supporting part are hinged to the connecting parts. A first groove configured to accommodate an end of the bending part and an end of the supporting part is provided in each of the connecting parts. An outlet direction of the first groove is set forward so that the bending part or the supporting part can be rotated forward to fold the bending part and the supporting part. Rears of bottoms of the supporting part are connected to a supporting base, and detachable adjusting assembly is connected between the supporting base and the supporting part. The supporting part, the supporting base and adjusting assembly form a triangular supporting structure.

A headband satisfying tennis association rules consisting of a first length of a nontransparent vinyl or fabric band coupled to a second, lower positioned length of transparent polyvinyl film of at least 100%-150% greater width in reducing the blind spot in overall tennis play.

A hack it ball game including rules and regulations for scoring points to win the hack it ball game, a ball, and a dividing apparatus. The hack it ball game is played by opposing players return the ball over the net within a court, the dividing apparatus is assembled and divides the court evenly in half to a first-section and a second-section. The hack it ball game is a competitive recreational game using a nylon sand or bead bag ball.

An improved shuttlecock for playing a game involving hitting the shuttlecock back-and-forth between players includes a base having a number of stems, each stem extending outwardly from a central axis of the improved shuttlecock by a non-zero angle (e.g., from 2 to 30 degrees). Each stem has a receptor. The base has a cylindrical surface at an end distal from the plurality of stems and an indentation between the cylindrical surface and the plurality of stems. A nose has a striking end and a lip that is distal from the striking end. The nose is connected to the base over the cylindrical surface such that the lip rests in the indentation of the base. Several feathers are included (equal number as the number of stems), each has a quill end. The quill end of each feather is inserted into and affixed within a corresponding one of the receptors.

Disclosed is a towel rack for use during a tennis or other sports event. In one example, the towel rack includes a support for supporting a towel, and at least one display panel for displaying a message. In a disclosed method, a message is displayed during the sports event, and the towel is placed on the support such that the message is unobstructed by the towel.

A let detection system includes a sensor including an accelerometer attached to a tennis net. The sensor is in wireless communication with an umpire device able to send a message to the sensor, wherein the message causes the sensor to calibrate and begin monitoring for a let. The sensor determines a three-dimensional (3D) vector representing the gravity acting on the sensor as a baseline. When the sensor detects vertical acceleration of the net relative to the baseline and the vertical motion is above a preset threshold, the sensor automatically transmits a let notification message to the umpire device.

A portable or stationary signaling system for monitoring the no-volley lines in pickleball which will provide an indication when a possible foul has occurred. The devices used in the system will generate and transmit an electronic beam along one or both of the no-volley lines on the court and will produce an indication when the beam has been broken, informing the players that a possible foul has occurred.

An easily assembled and disassembled frame for a net game includes a rigid multi-part frame with a cross-member that is non-sagging. Sections of the multi-part frame have an elliptical profile. A net stabilizer includes a tensioning member coupled at one end to a retention member of the frame, and having the other end of the tensioning member inserted into a center sleeve of the net, and, a center sleeve with a securing member for fastening securely at one end to the cross-member.

Disclosed is a towel rack for use during a tennis or other sports event. In one example, the towel rack includes a support for supporting a towel, and at least one display panel for displaying a message. In a disclosed method, a message is displayed during the sports event, and the towel is placed on the support such that the message is unobstructed by the towel.