The aim of this work was to estimate the energetic expenditure of the soccer referee and the assistant soccer referee during a soccer game. Fourteen soccer referees from Curitiba city were observed. 9 acting as referees (mean age of 36. 3 years and body mass of 82 kg) and 5 as assistant referees (mean age of 30 years and body mass of 77 kg). https://www.lightemupsequences.com/