The purpose of this chapter is to overview the sport mood model and mood research conducted in disability sport. Researchers in disability sport have examined mood in a limited fashion, with an overreliance on the Profile of Mood States (POMS) scale, which measures vigor, confusion, depressed mood, anger, fatigue, and tension. A clear limitation of the POMS scale is the underrepresentation of positive mood states that athletes experience. Many of the researchers in disability sport have asked modest questions, such as do athletes with acquired versus congenital disabilities have more positive mood states? Other researchers have used the positive and negative affective schedule and have been able to offer a more well-rounded commentary on various positive and negative affective states and how they are related to other cognitions and sport performance. The chapter concludes with the recommendation that researchers use models of emotion and mood such as the 12-point affect circumplex (12-PAC) model and address how core affect can be assessed to reflect mood or emotion.