Time is measured on all individual routes via a one-way transponder integrated in the personal bib number. The bib number must not be kinked, covered or altered. Finishers who cross the start line, finish line, and all the control mats laid out along the course will be evaluated according to net time (effective running time). There is no additional transponder fee. It is not necessary to return the transponder. In the marathon relay, each team starts with a reusable transponder that is attached to the ankle with Velcro. The transponder automatically serves as a “baton” and must be passed on to the next relay runner at the exchange points. The total net time of the relay team and the individual split times of the sections are recorded for teams that cross the start and finish line as well as all control mats laid out on the route. After the final relay runner finishes, the transponder must be returned!