A recent study sought to determine whether international dressage judges qualified to judge at the highest level of the sport may be prone to systematic errors when assessing elite horse-rider combinations during competition. Researchers examined 510 judging scores gathered from seven five-star dressage competitions held between May 2022 and April 2023. The effect of different factors, such as whether riders competed in their home country, if they had the same nationality as the judges, their starting order during the competition, and how they were ranked according to previous performances were analysed.