BACKGROUND AND AIMS The EACOM is a connection of Schacks [1] 'model of exercise dependency in endurance sport' and Browns [2] 'hedonic management model of addiction' including passion [3] and perfectionism [4] as moderating variables of exercise addiction (Figure 1). The aim of this study was to verify the EACOM empirically. METHOD The sample consisted of N=317 athletes exercising minimum four hours/week. They completed 'questionnaire to diagnose exercise dependency in endurance sport' (FESA) [5], 'multidimensional inventory of perfectionism in sport' (MIPS) [4], 'social readjustment rating scale' (SRRS) [6], 'passion scale' [3] and 'locus of control' [7]. Spearman correlation and CATREG was used for data analysis. Based on these results FESA total score (criterium), obsessive passion (predictor) and concerns of imperfection (predictor) were analyzed by structural equation model (SEM). Univariate ANOVA was used to determine FESA total score differences between committed, focused and at risk of exercise addiction. RESULTS Appreciable correlations were found between FESA total score and obsessive passion (r=.523) and FESA total score and concerns of imperfection (MIPS; r=.368). CATREG shows a R2=.349 (R2cor.=.332) and SEM a CFI=.920, RMSEA=.070 and TLI=.905. Committed, focused and at risked of exercise addiction athletes differ in FESA total score and obsessive passion increasing from committed over focused up to at risk of exercise addiction. CONCLUCION The degree of obsessive passion and concerns of imperfection seem to have a moderating effect on the occurrence of exercise addiction, which confirms one of the assumption of the EACOM.