Hi,
Regarding
https://www.openstreetmap.org/way/911076925 ;
and
https://www.openstreetmap.org/way/949763240 :
Combining sport=horse_racing with leisure=horse_riding is not a good idea, imho, see wiki:
https://wiki.openstreetmap.org/wiki/Tag:sport=horse_racing
https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dhorse_riding
https://wiki.openstreetmap.org/wiki/How_to_map_a#R