So this is how the short story goes:
I woke up race day at 4 AM with high BGs, ate breakfast and got my BG's down somewhat before the race. I thought they were falling but apparently not. I was using my race day basal rate profile, that becomes less and less throughout the day, ending up at 0.05 U/hr. I ate 2 gels before the swim, and 2 mid-swim and was high for the first 2 hours of the bike, during which I didn't eat. My swim time was 1:55. I felt great on the bike and maintained a heart rate in mid-zone 2 (aerobic zone). By the end of the bike, my blood sugar was steady at around 140-150, and the Dexcom was working great. My bike time was 7:04. I started the run and felt strong for the first 7-8 miles, at which point I started to deteriorate. When I noticed increasing cognitive symptoms, I decided to stop at the aid station (mile 9). I rested there and took some insulin and drank 1 cup of Gatorade during that time. I felt well enough to resume running after 30 minutes. My BG, which was rising before I stopped, went up, then down and then up again by the end of the run. I think it would be interesting to try and correlate my mile splits with my BG! My heart rate during the run was hovering between zone 1 and 2. I finished the run in 5:22, and the race in 14:42, with no episodes of hypoglycemia. However, the high BG's left something to be desired and, as I discovered, can have a much more negative impact on longer events such as IM than on shorter races such as marathons and half-Ironman distance triathlons (which are not that short I guess!).
I had a fabulous group of friends and family cheering me on in Coeur d'Alene and via the Internet elsewhere. Every time I crossed one of those timing mats, I felt a little cheer coming from those following the race on ironmanlive.com. Thanks, everyone!