 This study examined the motives for first participating in park run and the impact of volunteering versus running slash walking. It found that volunteers were more likely to be older, retired, and less active at registration. They also had higher levels of motivation to give something back to the community, to feel part of a community, and to help people. Additionally, volunteers reported greater improvements in connection with others, including feeling part of a community, meeting new people, and spending time with friends. Volunteers were also more likely to report improvements in mental and physical health. This article was authored by Steve Hawk, Helen Quirk, and Alice Bullis.