Hi,
https://www.openstreetmap.org/way/1304626409 and https://www.openstreetmap.org/way/1304619079 don't look like horse riding centres (tag leisure=horse_riding), they look like horse riding arenas (leisure=pitch + sport=equestrian); like this one: https://www.openstreetmap.org/way/1175755945;
See also:
https://wiki.openstreetmap.org/wiki/How_to_map_a#Riding_centre_(equestrian)
https://www.openstreetmap.org/way/351529199 (example)