Currently, a lack of research exists in relation to the categorization of training tasks in grassroots, and specially in under-19 category. The SIATE is an objective and useful tool for registering training tasks. This tool has been used only in a previous research in football context. Therefore, the aim of the present research is to analyze and compare the pedagogical characteristics of training tasks designed by a coach that worked in an under-19 team during a two-months competitive period. A total of 114 tasks, divided in 17 training sessions during two months, january (n=9) and february (n=8) were registered. The tool utilized to analyse the tasks was the SIATE, where the following pedagogical variables were analyzed (a) Game situations; (b) With or without goalkeeper; (c) Game phase; (d) Type of content; (e) Sports initiation medium; (f) Level of opposition and (g) Playing line. The main results show in the first month a prevalence of 6vs6 small-sided games without goalkeeper. Instead, in the second month, it is shown 8vs7 small-sided games and combined game situations without goalkeeper. In relation to the comparison analysis between months, statistical differences were found in all pedagogical variables. In conclusions, thus, in this u-19 team is found a prevalence of small-sided games to develop the physical-technical-tactical capacities of footballers during training sessions, being possible the objective register of them by the SIATE's tool. Besides, it exists a lack of goalkeeper participation in the training tasks that should be corrected to improve the performance and achieve a better simulation of real play context.
