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 home plate foundation form for supporting a home plate for playing baseball and softball includes, for example, an outer frame, an inner frame, and a tray. The outer frame incudes a bottom and a sidewall defining a chamber therein having an upper opening. The inner frame is supported in the chamber of the outer frame. The inner frame includes a bottom and a sidewall defining a chamber therein having an upper opening. The tray is supportable in the inner frame for adjustably supporting the home plate.

A home plate foundation form for supporting a home plate for playing baseball and softball includes, for example, an outer frame, an inner frame, and a tray. The outer frame incudes a bottom and a sidewall defining a chamber therein having an upper opening. The inner frame is supported in the chamber of the outer frame. The inner frame includes a bottom and a sidewall defining a chamber therein having an upper opening. The tray is supportable in the inner frame for adjustably supporting the home plate.

The invention relates to a shock pad comprising: a coherent plate having upper and lower major surfaces, wherein the coherent plate comprises at least one coherent layer comprising man-made vitreous fibres (MMVF) bonded with a cured binder composition; an upper membrane layer bonded to the upper major surface of the coherent plate; a lower membrane layer bonded to the lower major surface of the coherent plate; wherein the at least one coherent layer has a thickness in the range of 12 mm to 40 mm and a density in the range of 175 kg/m.sup.3 to 300 kg/m.sup.3. The invention also relates to a method of producing the shock pad, and use of the shock pad for absorbing shock in a sports field, for absorbing and/or draining water in a sports field, and for cooling the surface temperature of a sports field.

Sports field (1), comprising abase structure (10) and a cover (13), wherein the cover is at least partly permeable to fluid, especially water, wherein the cover comprises a top layer (41) and a shock absorbing layer (38A) provided between the top layer and the base structure, wherein the shock absorbing layer has upper (38T) and lower (38L) surfaces and comprises manmade vitreous fibres (MMVF) bonded by a cured binder, wherein the shock absorbing layer has a thickness (D38) between the upper and lower surfaces of between 12 and 40 mm and has a density of between 175 kg/m.sup.3 and 300 kg/m.sup.3, wherein the shock absorbing layer is hydrophilic, such that it can absorb a volume of water of between at least 20 to 95% of the volume of the shock absorbing layer. A method for forming a sports field and a method for operating a sports field are also disclosed.

Sports field (1), comprising abase structure (10) and a cover (13), wherein the cover is at least partly permeable to fluid, especially water, wherein the cover comprises a top layer (41) and a shock absorbing layer (38A) provided between the top layer and the base structure, wherein the shock absorbing layer has upper (38T) and lower (38L) surfaces and comprises manmade vitreous fibres (MMVF) bonded by a cured binder, wherein the shock absorbing layer has a thickness (D38) between the upper and lower surfaces of between 12 and 40 mm and has a density of between 175 kg/m.sup.3 and 300 kg/m.sup.3, wherein the shock absorbing layer is hydrophilic, such that it can absorb a volume of water of between at least 20 to 95% of the volume of the shock absorbing layer. A method for forming a sports field and a method for operating a sports field are also disclosed.

A home plate foundation form for supporting a home plate for playing baseball and softball includes, for example, an outer frame, an inner frame, and a tray. The outer frame incudes a bottom and a sidewall defining a chamber therein having an upper opening. The inner frame is supported in the chamber of the outer frame. The inner frame includes a bottom and a sidewall defining a chamber therein having an upper opening. The tray is supportable in the inner frame for adjustably supporting the home plate.

A home plate foundation form for supporting a home plate for playing baseball and softball includes, for example, an outer frame, an inner frame, and a tray. The outer frame incudes a bottom and a sidewall defining a chamber therein having an upper opening. The inner frame is supported in the chamber of the outer frame. The inner frame includes a bottom and a sidewall defining a chamber therein having an upper opening. The tray is supportable in the inner frame for adjustably supporting the home plate.

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.

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.