Sport psychology professionals (SPPs), like psychologists in general, may cross therapeutic boundaries (e.g., hug a client) and even become sexually attracted to their athlete-clients (ACs). I examined the prevalence of these issues, as well as SPPs' ethical training and use of supervision in relation to them. Participants were 181 SPPs; 92 (50.8%) reported being sexually attracted to one or more of their ACs. In regards to specific behaviors, approximately half (49.4%) reported discussing personal matters unrelated to their (n = 87), whereas far fewer had engaged in sexual behaviors with their ACs, such as discussing sexual matters unrelated to their work (n = 4), and caressing or intimately touching an AC (n = 1). No SPP reported kissing, dating, having sexual intercourse, or engaging in other sexual activities with their ACs. The three most common nonsexual boundary crossings were (a) consulting with an AC in public places (e.g., hotel lobby or practice field; 87.8%), (b) working with an AC at practice (86.2%), (c) working with an AC at a competition (75.0%). Interestingly, few SPPs sought supervision/consultation regarding the attraction, though 83.7% said they would do so if they were attracted in the future. I also examined differences across gender, mental …