The application allows you to time a relay race by differentiating the different times of the race,this is the witness that is timed:- In Zone 1- In the Transmission area- In Zone 2The speed of the witness in the transmission zone is compared to the speed in the zones of the runners alone.The more efficient the transmission, the less the speed decreases in the transmission zone.The overall performance of the relay can also be compared to the reference performance of the duo.The result is immediately visible thanks to a graphic indication corresponding to the color code of the skills of the common base:Green = Very Good MasteryBlue = Good MasteryYellow = Fragile MasteryRed = Insufficient MasteryDifferent zone distances can be set to suit different hardware situations