The timekeeping will be done electronically.
On the back of the race number/bib is placed timekeeping chip which you must not damage/destroy (bend) in any way, otherwise your time will not be recorded.
The race number/bib is to be placed on the front of the shirt and must be visible at all times during the race and during the entry to the finish line.
The time limit for the marathon is 6 hours.
The time limit for the half-marathon is 5 hours.
The time limit for the half-marathon relay is 5 hours.
The time limit for the 10K race is 3 hours.