Gpexe [i] is a system aimed at measuring and analysing, with extreme accuracy and precision, the athletic performance of indoor elite sports players. The anchors, installed at ceiling level inside the arena, capture the position of the wearable tags simultaneously, with a positional accuracy of 10 cm, sending the data to the controller, which in turn stores and processes the data sent to the web app and to one or more iPads for real-time monitoring, available through the live app. No need for cables and with a user-friendly app interface. Gpexe [i] uses the Ultra Wide Band TDoA technology that guarantees a high update rate of each tag.