In reply to mountainbagger:
> My biggest problem is eating. I noticed you had hot soup (with bread I presume) etc. I usually don't fancy anything at aid stations in all events I do. I have to force myself to eat mostly. Were you actually hungry and enjoying the food? I see people around me scoffing cake, nuts and all sorts but I'm never keen and I'm wondering what I can do to fix that. Perhaps I'm pushing too hard or I need more fluid than most and I'm just not drinking enough.
I find that after maybe the first 8-9 hours of an ultra, especially a hot one, then I really struggle to eat anything for about the next 6-7 hours while things settle down so I make a conscious effort to take the soup when I can and we're not talking massive amounts- its actually quite nice at night - its salty and has little pasta bits in it so you're not replenishing all the lost calories, but it helps and especially the hydration. You'll never replace the calories you use in an ultra during the race, its a just a question of hanging on until the end.
Don't get hung up on what you see other people doing. They might be scoffing cake but they might as easily be chucking it up an hour later just before a DNF. Same with pacing - listen to your own body.
I heard an old adage of ultras once "If you're think you're going to slow, slow down some more". I found that I finished my longest races (UTMB and TDS) strongly ('sprint' finish both of them, and felt 'great') and its probably because of the serious distance (and time) involved.
The added benefit of not pushing too hard is you simply don't need as much water and as many calories so you're less likely to make yourself sick. Although you really need the fuel, those 6-7 hours basically starving through an ultra have taught me that we don't suddenly conk out at the side of the trail if we don't get the ideal amount, and that you can go a long way on nothing especially at low intensity. Recovering from bonking is easy, you just need sugar (short term) but dehydration is a game-killer - and if you make yourself sick scoffing too much, you likely won't want to take on more fluids (and will lose a load being sick).
*usual disclaimer that I'm not an expert, just the findings from an experiment of one.