The article deals with the problem of developing the forecast of the effectiveness of jumpers in height from the takeoff using the most important parameters of athletes - the degree of use of power capabilities in repulsion in combination with anthropometric parameters (body length, body weight) and age of athletes. The program for predicting the effectiveness of jumpers in height was developed on the basis of such important parameters as the degree of use of power capabilities in repulsion, the age, length and weight of the athletes. For the study, a group of athletes specializing in high jump with a take-off was created and the dynamics of increasing the results was analyzed, depending on the sports parameters for different age periods (from 10 to 17 years). It has been established that among the one-dimensional parameters: the degree of use of power capabilities, age, body weight and body length, the most informative parameter is the degree of use of power capabilities, which makes it possible to carry out the forecast of the athlete's performance to 17 years. The most informative parameter among the anthropometric (body length, body weight) is the body weight of the athletes. The study of two-dimensional parameters made it possible to determine the most informative parameters for the age of 10-14 years of athletes. It is established that such parameters are the age and length of the body. Among the three-dimensional parameters, the most informative combination for the age period of 10-14 years is established: age, body weight and body length of athletes. The four-dimensional combination of parameters (age, degree of use of power capabilities, body weight, body length) turned out to be less informative than other combinations of parameters. The results of the study confirm the conclusion that the inclusion of age in the composition of multidimensional information parameters is inexpedient. The obtained experimental data fully confirm the main theoretical positions on the solution of problems of predicting the effectiveness of jumpers in height.