Target Power Output for a 12 hr Race?
I am going to be doing my first 12hr race with a power meter, and although I have some expereince in using it for training, I haven't really yet attempted to use it a guide to pacing on such a long event.
I have done a fair amount of searching on the internet for this kind of guidance, but the information is pretty thin out there. Coach Friel has posted some information how an 8-hour Ironman racer would need to expect power outputs in the range of 50-60% of FTP.
Can anyone validate this with their own experiences? Does anyone have a recommendation on what level of power output woudl make for a good pacing effort for the early part of the race, say the first half or 2/3rds. I would expect my effort to creep up towards the end, as a attempt to leave it all on the course, but I won't have a good negative split if I kill myself in the first 6-8 hours. Thoughts?