Aedo-Munoz, EEAedo-MunozAedo-Munoz, EstebanEstebanAedo-MunozCerda-Kohler, HugoHugoCerda-KohlerGomez-Alvarez, NicolasNicolasGomez-AlvarezHermosilla-Palma, FelipeFelipeHermosilla-PalmaMerino-Munoz, PabloPabloMerino-MunozPerez-Contreras, JorgeJorgePerez-ContrerasPortes-Junior, MoacyrMoacyrPortes-JuniorSalas-Avila, MiguelMiguelSalas-AvilaVillaseca-Vicuna, RodrigoRodrigoVillaseca-Vicuna2025-08-112025-08-112024https://sic.vriic.usach.cl/entities/publication/85ee05ff-dc09-42d8-88e2-8e0c6c61b73cObjective: This study aims to assess the performance of professional soccer teams from different divisions and playing positions using the 30-15 intermittent fitness test (30-15 IFT). Methods: The sample comprised 84 male soccer players from first division teams A (1A) (n=21; mean age 23.5 +/- 5.2 years), first division B (1B) (n=42; mean age 23.0 +/- 5.0), and second professional division (2nd) (n=21; mean age 22.9 +/- 4.7 years). Performance was evaluated based on the final speed achieved in the 30-15 IFT (VIFT). Results: Significant differences were observed between 1A and both 1B and 2nd in VIFT (p=0.002, n2p=0.115). Additionally, differences were found between defenders and full-backs in VIFT (p=0.002, n2p=0.197). Conclusion: Performance in the 30-15 IFT varies across divisions, with 1A achieving the highest values. Moreover, full-backs demonstrated superior performance compared to defenders. These findings provide valuable insights for coaches, physical trainers, and sports scientists for optimizing training programs.en-USsoccerexercise testphysical fitnessathletic performance