Snikus triumphed in freestyle dressage having previously won the top prize in individual dressage as well.
The judges awarded Snikus and King of the Dance with 82.487% with the duo's artistic performance especially highly rated.
In the freestyle dressage, which takes place to the accompaniment of music, eight riders started.
The experienced Snikus took part in the fourth Paralympic Games in his career. The previous games three years ago in Tokyo were also successful for him, and he won two silver medals, also with King of the Dance.