Objective: Talent identification reduces stint to achieve better sports performances by elite athletes and enables application of scientific training. The purpose of this study was prioritizing the anthropometric, biomechanical and physiological characteristics of the elite boys in 200m Backstroke swimming for identifying their talents and predicting their performances.

Methods: 34 elite young swimmers, age11-12 years, who had ranked top in the championships in their province signed the letter consent and a questionnaire tapping into their biographical data. Three subject, due to lack of cooperation on the measurement of parameters and 4 subject, due to measurement errors, missed in the study. The anthropometrical, biomechanical and physiological parameters from 27 subjects were measured by Rydkv questionnaires. Data were analyzed using Friedman test. 

Results: The most important anthropometrical parameters were subscapularis fat (8.32 mm), triceps fat (8.93 mm) and supraspinatus fat (9.15 mm); the most important range of motions parameters were elbow hyperextension (3.59 degree), ankle dorsi flexion (6.50 degree) and hip hyperextension (40.65 degree); and the most important physiological parameters were action and reaction velocity (20.76 cm), left hand strength (23.56 kg) and right hand strength (23.78 kg) and flexibility (27.41 cm) in 200m Backstroke swimming. 

Conclusion: Anthropometrical, biomechanical and physiological parameters for identifying talents and predicting the performance of the elite swimmers in 200m Backstroke should be considered by authorities, practitioners and educators.