RFID tags are used to track runner progress during road races. Runners wear a paper bib usually on the front of their shirt which has an RFID tag on its back side. The runners will cross over timing mats at least at the start and finish (sometimes the RFID sensors are overhead, but in either case are several feet from the tag). This is used to fairly reliably track thousands of runners moving at 5-12 mph (more or less). I realize that&#x27;s a far cry from a car moving tens of mph, but modern RFID tech works better than you are claiming.