Hi,
If https://www.openstreetmap.org/way/127594852 is a horse riding arena, then please tag it as a riding arena and not as a riding center. For riding arenas there is a different preset in iD which sets the tags leisure=pitch + sport=equestrian. If the surface is sand that can be specified by surface=sand. And if the arena does not have a real name or house number/ address in real life then they don't need to be added in OSM. Example: https://www.openstreetmap.org/way/1100642184
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https://wiki.openstreetmap.org/wiki/How_to_map_a#Riding_centre_(equestrian)