Given the staggered starts of the DDE, the results and ranking will be based on chip time, which is the time from the moment the participant crosses the starting line and the chip on their bib is activated.
Chip Time
This is the time from the moment the participant crosses the starting line, and the chip on their bib is activated. Unless you are on the first line of the race, there is inevitably a difference between the official time and the chip time.