During the last years, it is clear the growing importance of endurance sports, especially middle- and long-distance races, included or not within the also very popular endurance triathlon. Currently, these athletes support the workouts on a smart watch or heart rate monitor as well as software applications for analysis and statistics. These software applications make possible to analyze a posteriori data itineraries, to make comparisons, to obtain statistical values, ... facilitating the realization of comprehensive and...