Share 'dokdo marathon/5k/10k on Sunday at Jamshil'

anybody here doing it? I'm doing the 10k (my first 10k race) for the first time I actually got my stuff in time. Now to figure out how the timing chip works. It looks like it stays stuck on the back of the number but if anybody can help I'd appreciate it. Hopefully it will be a nice way to end the semester and celebrate my birthday on Monday I dont have a prayer of running my age, maybe next year