For FEI results you may visit the link below:

https://data.fei.org/Person/Search.aspx

For the results of the FEI World Dressage Challenge series you may click the link below:

https://inside.fei.org/fei/events/fei-world-challenge/dressage/results

For the results of the FEI World Jumping Challenge series you may click the link below:

https://inside.fei.org/fei/events/fei-world-challenge/jumping/results