Hi,
https://www.openstreetmap.org/way/1418035262 and
https://www.openstreetmap.org/way/1418005081 and
https://www.openstreetmap.org/way/1416618883 are no horse riding centres (as explained on https://wiki.openstreetmap.org/wiki/Tag:leisure=horse_riding), they are horse riding arenas and should be tagged with leisure=pitch + sport=equestrian like
https://www.openstreetmap.org/way/1026068321

Compare former discussion
https://www.openstreetmap.org/changeset/147811585