26Athletes' motives for choosing not to use Performance Enhancing Drugs (PEDs) are 27 likely to be diverse and complex, including a consideration of biological factors (e.g., 28performance advantage), psychological characteristics (e.g., risk taking behavior), and 29 the athlete's social environment (e.g., the opinion and influence of significant others). 30As such, a multifactorial (bio, psycho, and social) evaluation is important when 31 examining the reasons against usage. The purpose of this study was to examine the 32 reasons athletes cite for not using PEDs. A phenomenological approach was 33 employed and data were collected from athletes (n = 36) and coaches (n = 10) using 34 semi-structured interviews and analyzed using Interpretative Phenomenological 35Analysis. Personal and moral standards were identified as key factors that led to 36 decisions to avoid PED. Psychological and social factors (e.g., the role of significant 37 others such as the coach) also play significant roles in decisions to avoid doping. 38Although anti-doping testing and education is central to anti-doping strategy, athletes' 39 decision not to dope was made independent of, or at least not contingent on these 40structures. As such, these findings have the potential to inform educational initiatives 41 designed to combat doping in sport outside the usual emphasis on sanctions and 42 testing. 43