A ring for a fighting sport has a circular fighting area defined by a plurality of circular fence rings that are held up by posts. Shock absorbers connect the fence rings to the posts. Position markers are provided to indicate the starting positions of the participating fighters at certain points during the bout.

A sports ball rebound and boundary system including at least one portable post portion, configured to in use stand upright unsupported, and a barrier portion. The post portion and the barrier portion are configured for mutual releasable connection so that at least part of the barrier portion is extendible from the post portion to form a substantially vertically aligned planar barrier extending upwards from substantially ground level. The barrier portion is further configured to in use remain under sufficient tension to cause a ball or similar to rebound when striking the barrier.

A sliding carpet assembly and a sliding carpet. The sliding carpet assembly comprises multiple roll shaft units. Each roll shaft unit comprises a roll shaft (310), and a fixing catch (210) in contact with and connected to one side of the roll shaft (310). The fixing catch (210) includes a supporting body. The supporting body is provided with a first through hole (213) and a second through hole (214). The axis of the first through hole (213) and the axis of the second through hole (214) are perpendicular to each other and do not intersect with each other. Moreover, the sliding carpet assembly further includes multiple connecting ropes (100). In a first direction, the connecting ropes (100) pass through the first through holes (213) to connect the multiple sequentially arranged roll shaft units in series. In a second direction perpendicular to the first direction, the connecting ropes (100) pass through the second through holes (214) to sequentially connect the multiple sequentially arranged fixing catches (210).

Systems and devices for a team game played on an obround court includes radially symmetric barriers defining cylindrical goals having circular openings concentric with the semicircles of the obround court. An annular halt zone extends around the barriers. A free throw line extends around each halt zone. An obround judge lane extends along the perimeter of the court and is occupied by two judges or referees that monitor the game, while another judge or referee remains inside the perimeter. The court is divided by a centerline which includes a circle at the center of the court. The outer wall of the barrier includes one or more video screens. Audience members can access a computer network to display images, text or video selected by them in real-time during gameplay. The ball used for the game has a surface texture provided by a plurality of square pebbles instead of rounded pebbles.

A form for constructing a foundation for anchoring a pole vault standard to a support structure adjacent to a landing pad includes a first frame and a first plurality of connectors defining a first connecting pattern for coupling to a corresponding connecting pattern of a base of the first pole vault standard. The form is installable in the support structure and operable for use in fixedly connecting the first base of the pole vault standard to the form. A pair of forms may be employed for constructing a pair of foundations for anchoring a pair of pole vault standards to a support structure adjacent to a landing pad.

This invention deals with portable modular equipment for area assembly multisport and/or multipurpose and method of setting up multisport area and/or multipurpose, ideal for sports such as soccer, volleyball, basketball, handball or other sports, as well as physical, educational and recreational activities that primarily aim at the production of knowledge related to teaching/learning/leisure; the modular equipment (10) is completely portable and conformed by one, preferably, two modules (20), each of them to the format preferential use of a container (21) and able to pack a set of parts structural (CP) that correspond to half of a multisport/multipurpose area (AP); said set of pieces (CP) is basically composed of a fencing bottom link (30A), two side fences (30B), at least four modular bleachers (40), at least one access structure (30C), accessories goal posts (60), volleyball nets (61) or others, at least one self-contained set for generating lighting (70) and Wi-Fi signal, synthetic grass or modular floor coverings (GS), as well as components of mounting type connectors, screws and others.

A movable dasher board system optimizes user safety in a hockey rink or similar arena. A bottom structure, provided by a sliding bottom surface or roller assembly, has low friction characteristics, typically a .sub.s of 0.05 or less with respect to ice if a sliding surface, or if roller bearings an effective coefficient of rolling friction 0.04 or less. A dasher board assembly is operatively connected to and extends upwardly from the bottom structure. Biasing and impact force absorbing devices (such as pneumatic or hydraulic or spring-encasing telescoping tubes, or foam, gel, or compression springs) bias the bottom structure and dasher board assembly to a desired position and absorb the impact of a human hitting the dasher board assembly to minimize the possibility of injury to the human. The system may be installed in a pre-existing rink or other arena.

The multisport space includes a plurality of different fields for goal sports and net sports. There is a first square or rectangular area for goal sports delimited by a vertical wall. The first goal sports area has a goal sports field in which the goals are vertical and extend from ground level. There is a goal sports field in which the goals are horizontal and placed at a certain height. The panels of the vertical wall form nets for a plurality of net sports fields arranged on either side of the panels of the vertical wall. Extensions of panels, leading from their respective implantation axes, also form nets for net sports fields.

A sliding carpet assembly and a sliding carpet. The sliding carpet assembly comprises multiple roll shaft units. Each roll shaft unit comprises a roll shaft (310), and a fixing catch (210) in contact with and connected to one side of the roll shaft (310). The fixing catch (210) includes a supporting body. The supporting body is provided with a first through hole (213) and a second through hole (214). The axis of the first through hole (213) and the axis of the second through hole (214) are perpendicular to each other and do not intersect with each other. Moreover, the sliding carpet assembly further includes multiple connecting ropes (100). In a first direction, the connecting ropes (100) pass through the first through holes (213) to connect the multiple sequentially arranged roll shaft units in series. In a second direction perpendicular to the first direction, the connecting ropes (100) pass through the second through holes (214) to sequentially connect the multiple sequentially arranged fixing catches (210). By using such a sliding carpet, sliding friction is replaced with rolling friction. Thus, a sportsman can be prevented from falling by inertia due to a sudden deceleration caused by excessive resistance. Moreover, the sportsman could carry on sliding with the sliding carpet, and the safety is improved.

Rate of deceleration is an important factor in determining the severity of injuries, such as head and neck injuries, possibly sustained when participants collide with a wall assembly while playing, for example, ice hockey. The described wall assemblies each include a support assembly and a movable wall assembly supported by and movable with respect to the support assembly. Telescoping parts of the movable wall assembly enable deflection of the movable wall assembly to complex angles with respect to the support assembly. In addition, movable wall assemblies can be couple such that impact on one wall assembly can cause deflection of an adjacent wall assembly. Covers, shields, and spacers can be positioned to decrease gap formation during deflection of the movable wall assembly to reduce the risk of pinch points.