I'm a 1:45-1:50 half marathoner from Kansas. I ran the PPA for the first time last year (wave 2), and did it in 3:58. I didn't have much "strategy", but I did take off pretty fast on the paved portion, which I felt like gave me a good start. I also passed when the opportunity presented itself, and I stuck with a group who seemed to be "running" occasionally. I think I could have finished quicker, but I did get stuck in a few spots where I just couldn't pass.