The study's primary aim was cross-sport comparison rather than broad population generalization. The sample comprised athletes from volleyball (n = 40), basketball (n = 38), wrestling (n = 35), boxing (n = 30), swimming (n = 28), and athletics (n = 29). The unequal sample distribution across disciplines reflected differences in the number of registered athletes and response rates at participating clubs. Participants' mean age was 21.4 ± 2.1 years, with a mean training experience of 4.8 years. The study employed a descriptive-analytical, applied, cross-sectional design. Data were collected using a battery of anthropometric and physiological field tests conducted in accordance with ISAK guidelines and standardized performance protocols, together with three validated psychological questionnaires (sport motivation, sport resilience, and attentional control). Instrument validity was confirmed by experts and relevant statistical tests, while reliability was established at a satisfactory level, with Cronbach's alpha ranging from 0.83 to 0.89 and test-retest reliability yielding an intraclass correlation coefficient (ICC) of 0.91. Based on these findings, coaches and talent-identification centers are advised to: (a) begin initial screening in team and combat sports (volleyball, basketball, wrestling, boxing) using anthropometric indicators; (b) prioritize physiological testing (VO₂max, speed, anaerobic power) in athletics; (c) mandatorily incorporate psychological assessment (anxiety management, concentration) from the earliest stages of talent identification in swimming; and (d) replace uniform assessment models with a multi-stage, sport-specific test battery across all disciplines.