Notes
The general consensus among my friends is that the course was long, even though we thought it was supposed to be certified. I threw up, which isn't all that unusual, considering how high my HR got, but I also have been suffering from a bout of diarrhea since last night. Fortunately it didn't happen during (or after) the race because there were no porta-potties.
My max HR in a race the last couple of years is 188 so I came very close to that, and considering it was after I threw up and recovered during mile 5, I feel pretty good about that effort at the end.