Cessation of use predispositions consistent with breed characteristics might be a source of constant frustration and behavioural disorders for the dog. Therefore, a lack of typical activity for a breed significantly reduces the level of well-being and negatively affects the quality of life. Aware owners of working-breed dogs are trying to fulfil their needs through activities offered by different dog (cynological) sports. However, some opinions state that dog sports might impair their well-being due to intensive training and competitions. The goal of this study was an assessment of the living condi- tions and the level of welfare of the dogs actively participating in dog sports, based on their owner’s declarations. The research material was gathered from a survey among dog sports competitors and people associated with dog sports but not practising them. Five hundred fifty respondents, including 407 active dog sports competitors, participated in the study. It was hypothesized that taking an active part in dog sports and their discipline impacts the owner’s awareness of the need to ensure a high level of welfare of the sporting dogs. The relationship between the sports discipline and the variables that determined the level of well-being was determined. Surveys have shown that in the opinion of people practising cynological sports, sports dogs are provided with a high level of welfare, although the percentage of people who gave such an answer depends on the dog sport practised.