The ecological methodology of observational analysis for athletics competitions through 2D studies without interfering with the athletes, aims to explain the variables that affect the achievement of an official time or distance. In this study, four triple jump finals of different World Athletics Championships were analysed: IAAF World Indoor Athletics Championships Sopot 2014 (men and women), IAAF World Athletics Championships London 2017 (men) and IAAF World Indoor Athletics Championships Birmingham 2018 (women). 156 valid jumps were analysed (70 from men and 86 from women), from a total of 44 athletes (20 male and 24 female). To analyse each jump, 2 high speed cameras (Casio, Japan) were used, recording at 300 Hz. They were placed at the stands perpendicular to the runway and sand pit, and used VDM (video distance measurement, Seiko, Japan) for the official measurement system. For each jump, 27 variables of space, time, and velocity were measured, which allows for a description of the characteristics of each one of them. It is concluded that the traditional classification of the jumps regarding the distance ratio (predominance of the hop, jump, or balanced) should be revised, as well as that the variables referred to velocity and time better explain the achieved effective distance.
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