So I did the 15 Mile running race, The Charleston Distance Run this past weekend.
Had some crazy bg issues.
Start out of bed at 187mg, ate one cup of greek yogurt and had one english muffin no insulin
Tested about about 5 minutes before the start and bg was 279! Yikes! That's the highest I have ever seen before, during or after any workout! Didn't really know what to do at that point other than just run and hope to burn some of that off.
My nutrition play was the same as training. One bottle of Hammer Heed per hour, with about 1.5 scoops=40g carb. I carry my own nutrition with me.
It was hot, 72 degrees at the 7:30am start with 100% humidity. I do not function well in humid conditions as I really sweat a lot. I knew when I took my first step out the door that my goal time of 2 hours was probably not going to happen. This is a very hilly course.
I tested my bg about halfway point of race because I was feeling crappy it bg was 226mg, yikes! Way high for me, never seen this before. I didn't really now what to do other than totally scrap my nutrition plan and just drink water so that's what I did.
Finished the race in 2:07, not bad all things considered.
Bg at finish was 187.
I believe I will need to adjust when I take my Lantus especially on race day
starting out of bed you were high, i would have had insulin to cover the yoghurt and muffin- that way you would have started the race at a similar BS to when you woke up. 279 is maybe getting into ketone territory. The fact it got to 226 after around 7 or 8 miles of running sounds too me as though you were lean on insulin. Racing is much different to training- i am finiding i (and many others) could once get away with the regimine you outlined. Allow physical activity to bring sugas down on their own. But training aside, this is hard to do for races over an hour or so, simply because the bsugar just wont come down without assistance of insulin. Note i say over an hour, simply because races that last less than that are usually intense (such as sprint tri's), which often sends the bsugar up on their own. Nutrition not needed.
This is why pumps are handy i guess. Press of a button, inject a bit, and your gold.
During my last 70.3 despite coming out of the water at 3.4mmols (64), i took 1 gel in T1 and jumped on my bike. It shot up to 12mmols (216) in a flash and was holding, it wouldnt drop and i needed nutrition. Whipped out my needle, coasted and injected in my tummy. That got me to 6mmol (108) which was great. Fortunately i only had to inject twice on the bike and that was it.
I think it was amclean who wrote a great report on injecting insulin in T1 prior to the bike.
In any event, 2:07 is nothing to sneeze at!