When practicing, I was able to run the distance in 2:08h, but on a very flat course, so I was thinking that 2:15h would be realistic for this more demanding course.
But then at km 17 it looked like I would be able to run the track within 2h, so I tried to and here is the result:
My first half-marathon in 1:59:04h - wow, I am happy.
While running I also crossed the 800km border since I started running last year (see e.g. here).