Hi,
https://www.openstreetmap.org/way/1366856338 and https://www.openstreetmap.org/way/1366856339 are not horse riding centres. They look like outdoor riding arenas. In OSM these riding arenas are usually tagged with leisure=pitch + sport=equestrian, example: https://www.openstreetmap.org/way/1031463170. See also: https://wiki.openstreetmap.org/wiki/How_to_map_a#Riding_centre_(equestrian)