I did it!
So, the race was fun. It was good! Nothing bad happened! which sounds like a low bar— but think about all the bad things that could happen in 3 hours and 49 minutes!
Yes, that was a not-so-subtle flex on my finish time. My time goal was very broad: I would've been happy with anything under 3:55. All my long runs were around 9:00/mile, but I read that long runs could be up to a minute and a half per mile slower than your race pace! So I had no idea what to expect, except that it would be somewhere between an 8:30 and a 9:00 pace (which is very broad).
My coach, Jim, told me to start at 8:55. I knew that wasn't going to happen. But I did listen to his instructions about pacing based on heart rate, and that's what I'm most proud of. This is the graph of my heart rate throughout the race:
Oh, and the pain in my foot? I took a risk by running in brand new shoes (I put five miles on them before the race) and I had absolutely zero pain during and after the race. See? Nothing bad happened! And for that, I am grateful.