Hi,
You have mapped two areas as horse riding centers (leisure=horse_riding) here: https://www.openstreetmap.org/way/1422133632 and https://www.openstreetmap.org/way/1422133633. These areas do not look like horse riding centers as described in https://wiki.openstreetmap.org/wiki/Tag:leisure=horse_riding. They look more like arenas. In this case they should be tagged with leisure=pitch + sport=equestrian. In JOSM you can use the preset for sport=equestrian to tag them like this.

https://www.miamicountyohiofair.com/facilityRental says; "Horse Complex – includes an arena, open picnic shelter, and several open barns. Arena includes lights, sound system, make-up arena and a judge stand. We also have a newly constructed horse barn with stall rental available during horse shows.". If there is something like a "horse complex" this complex should be tagged with leisure=horse_riding instead.